Home / 748,938.40-1,123,407.60-712,074.40

Finding the Fourth Proportional to 748,938.40, 1,123,407.60 and 712,074.40

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Solution

The fourth proportional to 748,938.40, 1,123,407.60 and 712,074.40 is: 1,068,111.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,938.40 : 1,123,407.60 = 712,074.40 : x
  2. Step 2: Convert to fraction form
    748,938.40/1,123,407.60 = 712,074.40/x
  3. Step 3: Cross multiply
    748,938.40x = 1,123,407.60 × 712,074.40
  4. Step 4: Simplify right side
    748,938.40x = 799,949,792,725.44
  5. Step 5: Solve for x
    x = 799,949,792,725.44/748,938.40
  6. Step 6: Final answer
    x = 1,068,111.60

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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.