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Finding the Fourth Proportional to 648,026.30, 972,039.45 and 480,064.70

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Solution

The fourth proportional to 648,026.30, 972,039.45 and 480,064.70 is: 720,097.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,026.30 : 972,039.45 = 480,064.70 : x
  2. Step 2: Convert to fraction form
    648,026.30/972,039.45 = 480,064.70/x
  3. Step 3: Cross multiply
    648,026.30x = 972,039.45 × 480,064.70
  4. Step 4: Simplify right side
    648,026.30x = 466,641,826,952.42
  5. Step 5: Solve for x
    x = 466,641,826,952.42/648,026.30
  6. Step 6: Final answer
    x = 720,097.05

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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.