Home / 943,345.45-1,415,239.59-312,259.25

Finding the Fourth Proportional to 943,345.45, 1,415,239.59 and 312,259.25

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Solution

The fourth proportional to 943,345.45, 1,415,239.59 and 312,259.25 is: 468,462.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,345.45 : 1,415,239.59 = 312,259.25 : x
  2. Step 2: Convert to fraction form
    943,345.45/1,415,239.59 = 312,259.25/x
  3. Step 3: Cross multiply
    943,345.45x = 1,415,239.59 × 312,259.25
  4. Step 4: Simplify right side
    943,345.45x = 441,921,652,943.71
  5. Step 5: Solve for x
    x = 441,921,652,943.71/943,345.45
  6. Step 6: Final answer
    x = 468,462.17

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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.