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Finding the Fourth Proportional to 442,520, 610,723.68 and 272,749.76

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Solution

The fourth proportional to 442,520, 610,723.68 and 272,749.76 is: 376,423.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,520 : 610,723.68 = 272,749.76 : x
  2. Step 2: Convert to fraction form
    442,520/610,723.68 = 272,749.76/x
  3. Step 3: Cross multiply
    442,520x = 610,723.68 × 272,749.76
  4. Step 4: Simplify right side
    442,520x = 166,574,737,146.32
  5. Step 5: Solve for x
    x = 166,574,737,146.32/442,520
  6. Step 6: Final answer
    x = 376,423.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.