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Finding the Fourth Proportional to 761,463.72, 1,050,930 and 439,109.64

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Solution

The fourth proportional to 761,463.72, 1,050,930 and 439,109.64 is: 606,034.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,463.72 : 1,050,930 = 439,109.64 : x
  2. Step 2: Convert to fraction form
    761,463.72/1,050,930 = 439,109.64/x
  3. Step 3: Cross multiply
    761,463.72x = 1,050,930 × 439,109.64
  4. Step 4: Simplify right side
    761,463.72x = 461,473,493,965.20
  5. Step 5: Solve for x
    x = 461,473,493,965.20/761,463.72
  6. Step 6: Final answer
    x = 606,034.77

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1.5x scale

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.