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Finding the Fourth Proportional to 389,741.04, 584,628 and 123,495.66

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Solution

The fourth proportional to 389,741.04, 584,628 and 123,495.66 is: 185,248.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,741.04 : 584,628 = 123,495.66 : x
  2. Step 2: Convert to fraction form
    389,741.04/584,628 = 123,495.66/x
  3. Step 3: Cross multiply
    389,741.04x = 584,628 × 123,495.66
  4. Step 4: Simplify right side
    389,741.04x = 72,199,020,714.48
  5. Step 5: Solve for x
    x = 72,199,020,714.48/389,741.04
  6. Step 6: Final answer
    x = 185,248.70

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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.