Home / 916,680.04-1,265,008.86-508,785.40

Finding the Fourth Proportional to 916,680.04, 1,265,008.86 and 508,785.40

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Solution

The fourth proportional to 916,680.04, 1,265,008.86 and 508,785.40 is: 702,118.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,680.04 : 1,265,008.86 = 508,785.40 : x
  2. Step 2: Convert to fraction form
    916,680.04/1,265,008.86 = 508,785.40/x
  3. Step 3: Cross multiply
    916,680.04x = 1,265,008.86 × 508,785.40
  4. Step 4: Simplify right side
    916,680.04x = 643,618,040,419.91
  5. Step 5: Solve for x
    x = 643,618,040,419.91/916,680.04
  6. Step 6: Final answer
    x = 702,118.53

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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.