Home / 522,681.24-721,331.58-307,964.40

Finding the Fourth Proportional to 522,681.24, 721,331.58 and 307,964.40

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Solution

The fourth proportional to 522,681.24, 721,331.58 and 307,964.40 is: 425,009.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,681.24 : 721,331.58 = 307,964.40 : x
  2. Step 2: Convert to fraction form
    522,681.24/721,331.58 = 307,964.40/x
  3. Step 3: Cross multiply
    522,681.24x = 721,331.58 × 307,964.40
  4. Step 4: Simplify right side
    522,681.24x = 222,144,447,235.75
  5. Step 5: Solve for x
    x = 222,144,447,235.75/522,681.24
  6. Step 6: Final answer
    x = 425,009.41

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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.