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Finding the Fourth Proportional to 656,483.40, 984,725.10 and 375,769.80

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Solution

The fourth proportional to 656,483.40, 984,725.10 and 375,769.80 is: 563,654.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,483.40 : 984,725.10 = 375,769.80 : x
  2. Step 2: Convert to fraction form
    656,483.40/984,725.10 = 375,769.80/x
  3. Step 3: Cross multiply
    656,483.40x = 984,725.10 × 375,769.80
  4. Step 4: Simplify right side
    656,483.40x = 370,029,953,881.98
  5. Step 5: Solve for x
    x = 370,029,953,881.98/656,483.40
  6. Step 6: Final answer
    x = 563,654.70

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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.