Home / 659,284.39-988,599.45-209,946.70

Finding the Fourth Proportional to 659,284.39, 988,599.45 and 209,946.70

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Solution

The fourth proportional to 659,284.39, 988,599.45 and 209,946.70 is: 314,815.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,284.39 : 988,599.45 = 209,946.70 : x
  2. Step 2: Convert to fraction form
    659,284.39/988,599.45 = 209,946.70/x
  3. Step 3: Cross multiply
    659,284.39x = 988,599.45 × 209,946.70
  4. Step 4: Simplify right side
    659,284.39x = 207,553,192,149.32
  5. Step 5: Solve for x
    x = 207,553,192,149.32/659,284.39
  6. Step 6: Final answer
    x = 314,815.88

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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.