Home / 912,287.34-1,368,654.18-642,941

Finding the Fourth Proportional to 912,287.34, 1,368,654.18 and 642,941

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Solution

The fourth proportional to 912,287.34, 1,368,654.18 and 642,941 is: 964,568.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,287.34 : 1,368,654.18 = 642,941 : x
  2. Step 2: Convert to fraction form
    912,287.34/1,368,654.18 = 642,941/x
  3. Step 3: Cross multiply
    912,287.34x = 1,368,654.18 × 642,941
  4. Step 4: Simplify right side
    912,287.34x = 879,963,887,143.38
  5. Step 5: Solve for x
    x = 879,963,887,143.38/912,287.34
  6. Step 6: Final answer
    x = 964,568.78

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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.