Home / 918,115.40-1,377,173.10-492,962.60

Finding the Fourth Proportional to 918,115.40, 1,377,173.10 and 492,962.60

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Solution

The fourth proportional to 918,115.40, 1,377,173.10 and 492,962.60 is: 739,443.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,115.40 : 1,377,173.10 = 492,962.60 : x
  2. Step 2: Convert to fraction form
    918,115.40/1,377,173.10 = 492,962.60/x
  3. Step 3: Cross multiply
    918,115.40x = 1,377,173.10 × 492,962.60
  4. Step 4: Simplify right side
    918,115.40x = 678,894,832,026.06
  5. Step 5: Solve for x
    x = 678,894,832,026.06/918,115.40
  6. Step 6: Final answer
    x = 739,443.90

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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.