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Finding the Fourth Proportional to 712,668.69, 1,069,158.69 and 239,341.68

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Solution

The fourth proportional to 712,668.69, 1,069,158.69 and 239,341.68 is: 359,064.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,668.69 : 1,069,158.69 = 239,341.68 : x
  2. Step 2: Convert to fraction form
    712,668.69/1,069,158.69 = 239,341.68/x
  3. Step 3: Cross multiply
    712,668.69x = 1,069,158.69 × 239,341.68
  4. Step 4: Simplify right side
    712,668.69x = 255,894,237,051.20
  5. Step 5: Solve for x
    x = 255,894,237,051.20/712,668.69
  6. Step 6: Final answer
    x = 359,064.79

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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.