Home / 725,122.80-1,000,829.52-402,943.68

Finding the Fourth Proportional to 725,122.80, 1,000,829.52 and 402,943.68

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Solution

The fourth proportional to 725,122.80, 1,000,829.52 and 402,943.68 is: 556,151.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,122.80 : 1,000,829.52 = 402,943.68 : x
  2. Step 2: Convert to fraction form
    725,122.80/1,000,829.52 = 402,943.68/x
  3. Step 3: Cross multiply
    725,122.80x = 1,000,829.52 × 402,943.68
  4. Step 4: Simplify right side
    725,122.80x = 403,277,929,841.43
  5. Step 5: Solve for x
    x = 403,277,929,841.43/725,122.80
  6. Step 6: Final answer
    x = 556,151.22

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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.