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Finding the Fourth Proportional to 575,475.20, 863,212.80 and 456,502.40

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Solution

The fourth proportional to 575,475.20, 863,212.80 and 456,502.40 is: 684,753.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,475.20 : 863,212.80 = 456,502.40 : x
  2. Step 2: Convert to fraction form
    575,475.20/863,212.80 = 456,502.40/x
  3. Step 3: Cross multiply
    575,475.20x = 863,212.80 × 456,502.40
  4. Step 4: Simplify right side
    575,475.20x = 394,058,714,910.72
  5. Step 5: Solve for x
    x = 394,058,714,910.72/575,475.20
  6. Step 6: Final answer
    x = 684,753.60

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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.