Home / 651,640.04-899,263.18-396,991.04

Finding the Fourth Proportional to 651,640.04, 899,263.18 and 396,991.04

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Solution

The fourth proportional to 651,640.04, 899,263.18 and 396,991.04 is: 547,847.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,640.04 : 899,263.18 = 396,991.04 : x
  2. Step 2: Convert to fraction form
    651,640.04/899,263.18 = 396,991.04/x
  3. Step 3: Cross multiply
    651,640.04x = 899,263.18 × 396,991.04
  4. Step 4: Simplify right side
    651,640.04x = 356,999,425,061.91
  5. Step 5: Solve for x
    x = 356,999,425,061.91/651,640.04
  6. Step 6: Final answer
    x = 547,847.59

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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.