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Finding the Fourth Proportional to 832,518.30, 1,248,012 and 299,909.08

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Solution

The fourth proportional to 832,518.30, 1,248,012 and 299,909.08 is: 449,587.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,518.30 : 1,248,012 = 299,909.08 : x
  2. Step 2: Convert to fraction form
    832,518.30/1,248,012 = 299,909.08/x
  3. Step 3: Cross multiply
    832,518.30x = 1,248,012 × 299,909.08
  4. Step 4: Simplify right side
    832,518.30x = 374,290,127,628.93
  5. Step 5: Solve for x
    x = 374,290,127,628.93/832,518.30
  6. Step 6: Final answer
    x = 449,587.87

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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.