Home / 1,439,138.52-2,158,677.48-479,663.52

Finding the Fourth Proportional to 1,439,138.52, 2,158,677.48 and 479,663.52

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Solution

The fourth proportional to 1,439,138.52, 2,158,677.48 and 479,663.52 is: 719,485.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,138.52 : 2,158,677.48 = 479,663.52 : x
  2. Step 2: Convert to fraction form
    1,439,138.52/2,158,677.48 = 479,663.52/x
  3. Step 3: Cross multiply
    1,439,138.52x = 2,158,677.48 × 479,663.52
  4. Step 4: Simplify right side
    1,439,138.52x = 1,035,438,838,601.53
  5. Step 5: Solve for x
    x = 1,035,438,838,601.53/1,439,138.52
  6. Step 6: Final answer
    x = 719,485.18

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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.