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Finding the Fourth Proportional to 626,760.40, 940,140.60 and 477,461.20

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Solution

The fourth proportional to 626,760.40, 940,140.60 and 477,461.20 is: 716,191.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,760.40 : 940,140.60 = 477,461.20 : x
  2. Step 2: Convert to fraction form
    626,760.40/940,140.60 = 477,461.20/x
  3. Step 3: Cross multiply
    626,760.40x = 940,140.60 × 477,461.20
  4. Step 4: Simplify right side
    626,760.40x = 448,880,659,044.72
  5. Step 5: Solve for x
    x = 448,880,659,044.72/626,760.40
  6. Step 6: Final answer
    x = 716,191.80

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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.