Home / 459,724.60-689,975.70-207,393.40

Finding the Fourth Proportional to 459,724.60, 689,975.70 and 207,393.40

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Solution

The fourth proportional to 459,724.60, 689,975.70 and 207,393.40 is: 311,265.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,724.60 : 689,975.70 = 207,393.40 : x
  2. Step 2: Convert to fraction form
    459,724.60/689,975.70 = 207,393.40/x
  3. Step 3: Cross multiply
    459,724.60x = 689,975.70 × 207,393.40
  4. Step 4: Simplify right side
    459,724.60x = 143,096,406,340.38
  5. Step 5: Solve for x
    x = 143,096,406,340.38/459,724.60
  6. Step 6: Final answer
    x = 311,265.50

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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.