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Finding the Fourth Proportional to 547,285.01, 755,053.85 and 320,886.77

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Solution

The fourth proportional to 547,285.01, 755,053.85 and 320,886.77 is: 442,706.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,285.01 : 755,053.85 = 320,886.77 : x
  2. Step 2: Convert to fraction form
    547,285.01/755,053.85 = 320,886.77/x
  3. Step 3: Cross multiply
    547,285.01x = 755,053.85 × 320,886.77
  4. Step 4: Simplify right side
    547,285.01x = 242,286,788,129.51
  5. Step 5: Solve for x
    x = 242,286,788,129.51/547,285.01
  6. Step 6: Final answer
    x = 442,706.79

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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.