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Finding the Fourth Proportional to 575,463.70, 863,195.55 and 456,490.90

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Solution

The fourth proportional to 575,463.70, 863,195.55 and 456,490.90 is: 684,736.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,463.70 : 863,195.55 = 456,490.90 : x
  2. Step 2: Convert to fraction form
    575,463.70/863,195.55 = 456,490.90/x
  3. Step 3: Cross multiply
    575,463.70x = 863,195.55 × 456,490.90
  4. Step 4: Simplify right side
    575,463.70x = 394,040,913,495.50
  5. Step 5: Solve for x
    x = 394,040,913,495.50/575,463.70
  6. Step 6: Final answer
    x = 684,736.35

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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.