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Finding the Fourth Proportional to 550,032.40, 825,704.70 and 310,337.20

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Solution

The fourth proportional to 550,032.40, 825,704.70 and 310,337.20 is: 465,875.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,032.40 : 825,704.70 = 310,337.20 : x
  2. Step 2: Convert to fraction form
    550,032.40/825,704.70 = 310,337.20/x
  3. Step 3: Cross multiply
    550,032.40x = 825,704.70 × 310,337.20
  4. Step 4: Simplify right side
    550,032.40x = 256,246,884,624.84
  5. Step 5: Solve for x
    x = 256,246,884,624.84/550,032.40
  6. Step 6: Final answer
    x = 465,875.98

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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.