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Finding the Fourth Proportional to 895,078.49, 1,342,743 and 287,662.68

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Solution

The fourth proportional to 895,078.49, 1,342,743 and 287,662.68 is: 431,534.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,078.49 : 1,342,743 = 287,662.68 : x
  2. Step 2: Convert to fraction form
    895,078.49/1,342,743 = 287,662.68/x
  3. Step 3: Cross multiply
    895,078.49x = 1,342,743 × 287,662.68
  4. Step 4: Simplify right side
    895,078.49x = 386,257,049,931.24
  5. Step 5: Solve for x
    x = 386,257,049,931.24/895,078.49
  6. Step 6: Final answer
    x = 431,534.28

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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.