Home / 918,108.90-1,377,163.35-492,956.10

Finding the Fourth Proportional to 918,108.90, 1,377,163.35 and 492,956.10

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Solution

The fourth proportional to 918,108.90, 1,377,163.35 and 492,956.10 is: 739,434.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,108.90 : 1,377,163.35 = 492,956.10 : x
  2. Step 2: Convert to fraction form
    918,108.90/1,377,163.35 = 492,956.10/x
  3. Step 3: Cross multiply
    918,108.90x = 1,377,163.35 × 492,956.10
  4. Step 4: Simplify right side
    918,108.90x = 678,881,074,078.94
  5. Step 5: Solve for x
    x = 678,881,074,078.94/918,108.90
  6. Step 6: Final answer
    x = 739,434.15

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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.