Home / 555,904.80-766,641.24-403,981.20

Finding the Fourth Proportional to 555,904.80, 766,641.24 and 403,981.20

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Solution

The fourth proportional to 555,904.80, 766,641.24 and 403,981.20 is: 557,125.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,904.80 : 766,641.24 = 403,981.20 : x
  2. Step 2: Convert to fraction form
    555,904.80/766,641.24 = 403,981.20/x
  3. Step 3: Cross multiply
    555,904.80x = 766,641.24 × 403,981.20
  4. Step 4: Simplify right side
    555,904.80x = 309,708,648,104.69
  5. Step 5: Solve for x
    x = 309,708,648,104.69/555,904.80
  6. Step 6: Final answer
    x = 557,125.34

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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.