Home / 762,518.19-1,142,979.22-256,904.49

Finding the Fourth Proportional to 762,518.19, 1,142,979.22 and 256,904.49

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Solution

The fourth proportional to 762,518.19, 1,142,979.22 and 256,904.49 is: 385,087.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,518.19 : 1,142,979.22 = 256,904.49 : x
  2. Step 2: Convert to fraction form
    762,518.19/1,142,979.22 = 256,904.49/x
  3. Step 3: Cross multiply
    762,518.19x = 1,142,979.22 × 256,904.49
  4. Step 4: Simplify right side
    762,518.19x = 293,636,493,594.70
  5. Step 5: Solve for x
    x = 293,636,493,594.70/762,518.19
  6. Step 6: Final answer
    x = 385,087.85

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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.