Home / 918,253.20-1,377,379.80-545,005.20

Finding the Fourth Proportional to 918,253.20, 1,377,379.80 and 545,005.20

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Solution

The fourth proportional to 918,253.20, 1,377,379.80 and 545,005.20 is: 817,507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,253.20 : 1,377,379.80 = 545,005.20 : x
  2. Step 2: Convert to fraction form
    918,253.20/1,377,379.80 = 545,005.20/x
  3. Step 3: Cross multiply
    918,253.20x = 1,377,379.80 × 545,005.20
  4. Step 4: Simplify right side
    918,253.20x = 750,679,153,374.96
  5. Step 5: Solve for x
    x = 750,679,153,374.96/918,253.20
  6. Step 6: Final answer
    x = 817,507.80

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Double scale
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Similar ratio
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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.