Home / 753,402.40-1,130,103.60-454,220.80

Finding the Fourth Proportional to 753,402.40, 1,130,103.60 and 454,220.80

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Solution

The fourth proportional to 753,402.40, 1,130,103.60 and 454,220.80 is: 681,331.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,402.40 : 1,130,103.60 = 454,220.80 : x
  2. Step 2: Convert to fraction form
    753,402.40/1,130,103.60 = 454,220.80/x
  3. Step 3: Cross multiply
    753,402.40x = 1,130,103.60 × 454,220.80
  4. Step 4: Simplify right side
    753,402.40x = 513,316,561,274.88
  5. Step 5: Solve for x
    x = 513,316,561,274.88/753,402.40
  6. Step 6: Final answer
    x = 681,331.20

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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.