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Finding the Fourth Proportional to 875,047, 1,207,565.68 and 472,639

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Solution

The fourth proportional to 875,047, 1,207,565.68 and 472,639 is: 652,242.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,047 : 1,207,565.68 = 472,639 : x
  2. Step 2: Convert to fraction form
    875,047/1,207,565.68 = 472,639/x
  3. Step 3: Cross multiply
    875,047x = 1,207,565.68 × 472,639
  4. Step 4: Simplify right side
    875,047x = 570,742,635,429.52
  5. Step 5: Solve for x
    x = 570,742,635,429.52/875,047
  6. Step 6: Final answer
    x = 652,242.26

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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.