Home / 943,998.90-1,415,998.35-313,010.10

Finding the Fourth Proportional to 943,998.90, 1,415,998.35 and 313,010.10

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Solution

The fourth proportional to 943,998.90, 1,415,998.35 and 313,010.10 is: 469,515.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,998.90 : 1,415,998.35 = 313,010.10 : x
  2. Step 2: Convert to fraction form
    943,998.90/1,415,998.35 = 313,010.10/x
  3. Step 3: Cross multiply
    943,998.90x = 1,415,998.35 × 313,010.10
  4. Step 4: Simplify right side
    943,998.90x = 443,221,785,133.34
  5. Step 5: Solve for x
    x = 443,221,785,133.34/943,998.90
  6. Step 6: Final answer
    x = 469,515.15

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.