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Finding the Fourth Proportional to 803,931, 1,204,288.92 and 483,905.40

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Solution

The fourth proportional to 803,931, 1,204,288.92 and 483,905.40 is: 724,890.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,931 : 1,204,288.92 = 483,905.40 : x
  2. Step 2: Convert to fraction form
    803,931/1,204,288.92 = 483,905.40/x
  3. Step 3: Cross multiply
    803,931x = 1,204,288.92 × 483,905.40
  4. Step 4: Simplify right side
    803,931x = 582,761,911,548.17
  5. Step 5: Solve for x
    x = 582,761,911,548.17/803,931
  6. Step 6: Final answer
    x = 724,890.46

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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.