Home / 656,942.40-985,442.76-257,547.60

Finding the Fourth Proportional to 656,942.40, 985,442.76 and 257,547.60

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Solution

The fourth proportional to 656,942.40, 985,442.76 and 257,547.60 is: 386,332.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,942.40 : 985,442.76 = 257,547.60 : x
  2. Step 2: Convert to fraction form
    656,942.40/985,442.76 = 257,547.60/x
  3. Step 3: Cross multiply
    656,942.40x = 985,442.76 × 257,547.60
  4. Step 4: Simplify right side
    656,942.40x = 253,798,417,775.38
  5. Step 5: Solve for x
    x = 253,798,417,775.38/656,942.40
  6. Step 6: Final answer
    x = 386,332.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.