Home / 522,400.74-721,219.59-401,304.12

Finding the Fourth Proportional to 522,400.74, 721,219.59 and 401,304.12

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Solution

The fourth proportional to 522,400.74, 721,219.59 and 401,304.12 is: 554,035.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,400.74 : 721,219.59 = 401,304.12 : x
  2. Step 2: Convert to fraction form
    522,400.74/721,219.59 = 401,304.12/x
  3. Step 3: Cross multiply
    522,400.74x = 721,219.59 × 401,304.12
  4. Step 4: Simplify right side
    522,400.74x = 289,428,392,891.71
  5. Step 5: Solve for x
    x = 289,428,392,891.71/522,400.74
  6. Step 6: Final answer
    x = 554,035.19

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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.