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Finding the Fourth Proportional to 651,503.20, 976,477.20 and 272,423.20

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Solution

The fourth proportional to 651,503.20, 976,477.20 and 272,423.20 is: 408,309.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,503.20 : 976,477.20 = 272,423.20 : x
  2. Step 2: Convert to fraction form
    651,503.20/976,477.20 = 272,423.20/x
  3. Step 3: Cross multiply
    651,503.20x = 976,477.20 × 272,423.20
  4. Step 4: Simplify right side
    651,503.20x = 266,015,043,551.04
  5. Step 5: Solve for x
    x = 266,015,043,551.04/651,503.20
  6. Step 6: Final answer
    x = 408,309.65

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1.5x scale

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.