Home / 748,876.30-1,123,314.45-416,452.30

Finding the Fourth Proportional to 748,876.30, 1,123,314.45 and 416,452.30

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Solution

The fourth proportional to 748,876.30, 1,123,314.45 and 416,452.30 is: 624,678.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,876.30 : 1,123,314.45 = 416,452.30 : x
  2. Step 2: Convert to fraction form
    748,876.30/1,123,314.45 = 416,452.30/x
  3. Step 3: Cross multiply
    748,876.30x = 1,123,314.45 × 416,452.30
  4. Step 4: Simplify right side
    748,876.30x = 467,806,886,325.74
  5. Step 5: Solve for x
    x = 467,806,886,325.74/748,876.30
  6. Step 6: Final answer
    x = 624,678.45

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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.