Home / 522,566.64-721,165.68-307,715.76

Finding the Fourth Proportional to 522,566.64, 721,165.68 and 307,715.76

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Solution

The fourth proportional to 522,566.64, 721,165.68 and 307,715.76 is: 424,661.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,566.64 : 721,165.68 = 307,715.76 : x
  2. Step 2: Convert to fraction form
    522,566.64/721,165.68 = 307,715.76/x
  3. Step 3: Cross multiply
    522,566.64x = 721,165.68 × 307,715.76
  4. Step 4: Simplify right side
    522,566.64x = 221,914,045,307.12
  5. Step 5: Solve for x
    x = 221,914,045,307.12/522,566.64
  6. Step 6: Final answer
    x = 424,661.71

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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.