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Finding the Fourth Proportional to 494,430.30, 741,645.45 and 459,000.90

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Solution

The fourth proportional to 494,430.30, 741,645.45 and 459,000.90 is: 688,501.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,430.30 : 741,645.45 = 459,000.90 : x
  2. Step 2: Convert to fraction form
    494,430.30/741,645.45 = 459,000.90/x
  3. Step 3: Cross multiply
    494,430.30x = 741,645.45 × 459,000.90
  4. Step 4: Simplify right side
    494,430.30x = 340,415,929,030.91
  5. Step 5: Solve for x
    x = 340,415,929,030.91/494,430.30
  6. Step 6: Final answer
    x = 688,501.35

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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.