Home / 566,215.50-781,382.93-311,572.18

Finding the Fourth Proportional to 566,215.50, 781,382.93 and 311,572.18

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Solution

The fourth proportional to 566,215.50, 781,382.93 and 311,572.18 is: 429,972.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,215.50 : 781,382.93 = 311,572.18 : x
  2. Step 2: Convert to fraction form
    566,215.50/781,382.93 = 311,572.18/x
  3. Step 3: Cross multiply
    566,215.50x = 781,382.93 × 311,572.18
  4. Step 4: Simplify right side
    566,215.50x = 243,457,182,914.89
  5. Step 5: Solve for x
    x = 243,457,182,914.89/566,215.50
  6. Step 6: Final answer
    x = 429,972.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.