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Finding the Fourth Proportional to 487,552.61, 672,818.93 and 272,692.69

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Solution

The fourth proportional to 487,552.61, 672,818.93 and 272,692.69 is: 376,313.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,552.61 : 672,818.93 = 272,692.69 : x
  2. Step 2: Convert to fraction form
    487,552.61/672,818.93 = 272,692.69/x
  3. Step 3: Cross multiply
    487,552.61x = 672,818.93 × 272,692.69
  4. Step 4: Simplify right side
    487,552.61x = 183,472,800,859.11
  5. Step 5: Solve for x
    x = 183,472,800,859.11/487,552.61
  6. Step 6: Final answer
    x = 376,313.85

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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.