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Finding the Fourth Proportional to 497,298.40, 745,947.60 and 123,321.40

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Solution

The fourth proportional to 497,298.40, 745,947.60 and 123,321.40 is: 184,982.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,298.40 : 745,947.60 = 123,321.40 : x
  2. Step 2: Convert to fraction form
    497,298.40/745,947.60 = 123,321.40/x
  3. Step 3: Cross multiply
    497,298.40x = 745,947.60 × 123,321.40
  4. Step 4: Simplify right side
    497,298.40x = 91,991,302,358.64
  5. Step 5: Solve for x
    x = 91,991,302,358.64/497,298.40
  6. Step 6: Final answer
    x = 184,982.10

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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.