Home / 787,876.70-1,182,184.14-388,299.50

Finding the Fourth Proportional to 787,876.70, 1,182,184.14 and 388,299.50

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Solution

The fourth proportional to 787,876.70, 1,182,184.14 and 388,299.50 is: 582,631.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,876.70 : 1,182,184.14 = 388,299.50 : x
  2. Step 2: Convert to fraction form
    787,876.70/1,182,184.14 = 388,299.50/x
  3. Step 3: Cross multiply
    787,876.70x = 1,182,184.14 × 388,299.50
  4. Step 4: Simplify right side
    787,876.70x = 459,041,506,031.34
  5. Step 5: Solve for x
    x = 459,041,506,031.34/787,876.70
  6. Step 6: Final answer
    x = 582,631.15

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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.