Home / 918,140.80-1,377,211.20-357,175.30

Finding the Fourth Proportional to 918,140.80, 1,377,211.20 and 357,175.30

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Solution

The fourth proportional to 918,140.80, 1,377,211.20 and 357,175.30 is: 535,762.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,140.80 : 1,377,211.20 = 357,175.30 : x
  2. Step 2: Convert to fraction form
    918,140.80/1,377,211.20 = 357,175.30/x
  3. Step 3: Cross multiply
    918,140.80x = 1,377,211.20 × 357,175.30
  4. Step 4: Simplify right side
    918,140.80x = 491,905,823,523.36
  5. Step 5: Solve for x
    x = 491,905,823,523.36/918,140.80
  6. Step 6: Final answer
    x = 535,762.95

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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.