Home / 918,301.60-1,377,452.40-385,645.60

Finding the Fourth Proportional to 918,301.60, 1,377,452.40 and 385,645.60

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Solution

The fourth proportional to 918,301.60, 1,377,452.40 and 385,645.60 is: 578,468.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,301.60 : 1,377,452.40 = 385,645.60 : x
  2. Step 2: Convert to fraction form
    918,301.60/1,377,452.40 = 385,645.60/x
  3. Step 3: Cross multiply
    918,301.60x = 1,377,452.40 × 385,645.60
  4. Step 4: Simplify right side
    918,301.60x = 531,208,457,269.44
  5. Step 5: Solve for x
    x = 531,208,457,269.44/918,301.60
  6. Step 6: Final answer
    x = 578,468.40

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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.