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Finding the Fourth Proportional to 679,624.56, 937,905.95 and 373,724.15

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Solution

The fourth proportional to 679,624.56, 937,905.95 and 373,724.15 is: 515,752.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,624.56 : 937,905.95 = 373,724.15 : x
  2. Step 2: Convert to fraction form
    679,624.56/937,905.95 = 373,724.15/x
  3. Step 3: Cross multiply
    679,624.56x = 937,905.95 × 373,724.15
  4. Step 4: Simplify right side
    679,624.56x = 350,518,100,188.47
  5. Step 5: Solve for x
    x = 350,518,100,188.47/679,624.56
  6. Step 6: Final answer
    x = 515,752.55

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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.