Home / 514,311.71-771,470.12-210,871.61

Finding the Fourth Proportional to 514,311.71, 771,470.12 and 210,871.61

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Solution

The fourth proportional to 514,311.71, 771,470.12 and 210,871.61 is: 316,308.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,311.71 : 771,470.12 = 210,871.61 : x
  2. Step 2: Convert to fraction form
    514,311.71/771,470.12 = 210,871.61/x
  3. Step 3: Cross multiply
    514,311.71x = 771,470.12 × 210,871.61
  4. Step 4: Simplify right side
    514,311.71x = 162,681,141,359.59
  5. Step 5: Solve for x
    x = 162,681,141,359.59/514,311.71
  6. Step 6: Final answer
    x = 316,308.46

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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.