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Finding the Fourth Proportional to 634,270.32, 875,752.24 and 408,309.44

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Solution

The fourth proportional to 634,270.32, 875,752.24 and 408,309.44 is: 563,762.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,270.32 : 875,752.24 = 408,309.44 : x
  2. Step 2: Convert to fraction form
    634,270.32/875,752.24 = 408,309.44/x
  3. Step 3: Cross multiply
    634,270.32x = 875,752.24 × 408,309.44
  4. Step 4: Simplify right side
    634,270.32x = 357,577,906,693.15
  5. Step 5: Solve for x
    x = 357,577,906,693.15/634,270.32
  6. Step 6: Final answer
    x = 563,762.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.