Home / 830,432.57-1,145,996.94-448,459.32

Finding the Fourth Proportional to 830,432.57, 1,145,996.94 and 448,459.32

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Solution

The fourth proportional to 830,432.57, 1,145,996.94 and 448,459.32 is: 618,873.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,432.57 : 1,145,996.94 = 448,459.32 : x
  2. Step 2: Convert to fraction form
    830,432.57/1,145,996.94 = 448,459.32/x
  3. Step 3: Cross multiply
    830,432.57x = 1,145,996.94 × 448,459.32
  4. Step 4: Simplify right side
    830,432.57x = 513,933,008,434.48
  5. Step 5: Solve for x
    x = 513,933,008,434.48/830,432.57
  6. Step 6: Final answer
    x = 618,873.86

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.