Home / 915,931.62-1,264,137.00-508,164.79

Finding the Fourth Proportional to 915,931.62, 1,264,137.00 and 508,164.79

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Solution

The fourth proportional to 915,931.62, 1,264,137.00 and 508,164.79 is: 701,351.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,931.62 : 1,264,137.00 = 508,164.79 : x
  2. Step 2: Convert to fraction form
    915,931.62/1,264,137.00 = 508,164.79/x
  3. Step 3: Cross multiply
    915,931.62x = 1,264,137.00 × 508,164.79
  4. Step 4: Simplify right side
    915,931.62x = 642,389,914,728.17
  5. Step 5: Solve for x
    x = 642,389,914,728.17/915,931.62
  6. Step 6: Final answer
    x = 701,351.39

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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.