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Finding the Fourth Proportional to 651,470.40, 977,205.60 and 494,006.40

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Solution

The fourth proportional to 651,470.40, 977,205.60 and 494,006.40 is: 741,009.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,470.40 : 977,205.60 = 494,006.40 : x
  2. Step 2: Convert to fraction form
    651,470.40/977,205.60 = 494,006.40/x
  3. Step 3: Cross multiply
    651,470.40x = 977,205.60 × 494,006.40
  4. Step 4: Simplify right side
    651,470.40x = 482,745,820,515.84
  5. Step 5: Solve for x
    x = 482,745,820,515.84/651,470.40
  6. Step 6: Final answer
    x = 741,009.60

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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.