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Finding the Fourth Proportional to 875,076, 1,207,605.36 and 472,668

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Solution

The fourth proportional to 875,076, 1,207,605.36 and 472,668 is: 652,282.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,076 : 1,207,605.36 = 472,668 : x
  2. Step 2: Convert to fraction form
    875,076/1,207,605.36 = 472,668/x
  3. Step 3: Cross multiply
    875,076x = 1,207,605.36 × 472,668
  4. Step 4: Simplify right side
    875,076x = 570,796,410,300.48
  5. Step 5: Solve for x
    x = 570,796,410,300.48/875,076
  6. Step 6: Final answer
    x = 652,282.10

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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.