Home / 748,914.80-1,123,372.20-465,479.60

Finding the Fourth Proportional to 748,914.80, 1,123,372.20 and 465,479.60

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Solution

The fourth proportional to 748,914.80, 1,123,372.20 and 465,479.60 is: 698,219.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,914.80 : 1,123,372.20 = 465,479.60 : x
  2. Step 2: Convert to fraction form
    748,914.80/1,123,372.20 = 465,479.60/x
  3. Step 3: Cross multiply
    748,914.80x = 1,123,372.20 × 465,479.60
  4. Step 4: Simplify right side
    748,914.80x = 522,906,842,307.12
  5. Step 5: Solve for x
    x = 522,906,842,307.12/748,914.80
  6. Step 6: Final answer
    x = 698,219.40

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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.