Home / 649,630.62-974,445.93-316,921.50

Finding the Fourth Proportional to 649,630.62, 974,445.93 and 316,921.50

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Solution

The fourth proportional to 649,630.62, 974,445.93 and 316,921.50 is: 475,382.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,630.62 : 974,445.93 = 316,921.50 : x
  2. Step 2: Convert to fraction form
    649,630.62/974,445.93 = 316,921.50/x
  3. Step 3: Cross multiply
    649,630.62x = 974,445.93 × 316,921.50
  4. Step 4: Simplify right side
    649,630.62x = 308,822,865,804.50
  5. Step 5: Solve for x
    x = 308,822,865,804.50/649,630.62
  6. Step 6: Final answer
    x = 475,382.25

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Similar ratio
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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.