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Finding the Fourth Proportional to 628,254.70, 942,382.05 and 460,949.20

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Solution

The fourth proportional to 628,254.70, 942,382.05 and 460,949.20 is: 691,423.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,254.70 : 942,382.05 = 460,949.20 : x
  2. Step 2: Convert to fraction form
    628,254.70/942,382.05 = 460,949.20/x
  3. Step 3: Cross multiply
    628,254.70x = 942,382.05 × 460,949.20
  4. Step 4: Simplify right side
    628,254.70x = 434,390,252,041.86
  5. Step 5: Solve for x
    x = 434,390,252,041.86/628,254.70
  6. Step 6: Final answer
    x = 691,423.80

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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.