Home / 748,907.40-1,123,361.10-571,760.40

Finding the Fourth Proportional to 748,907.40, 1,123,361.10 and 571,760.40

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Solution

The fourth proportional to 748,907.40, 1,123,361.10 and 571,760.40 is: 857,640.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,907.40 : 1,123,361.10 = 571,760.40 : x
  2. Step 2: Convert to fraction form
    748,907.40/1,123,361.10 = 571,760.40/x
  3. Step 3: Cross multiply
    748,907.40x = 1,123,361.10 × 571,760.40
  4. Step 4: Simplify right side
    748,907.40x = 642,293,391,880.44
  5. Step 5: Solve for x
    x = 642,293,391,880.44/748,907.40
  6. Step 6: Final answer
    x = 857,640.60

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Half scale
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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.