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Finding the Fourth Proportional to 651,775.80, 899,543.30 and 361,451.94

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Solution

The fourth proportional to 651,775.80, 899,543.30 and 361,451.94 is: 498,855.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,775.80 : 899,543.30 = 361,451.94 : x
  2. Step 2: Convert to fraction form
    651,775.80/899,543.30 = 361,451.94/x
  3. Step 3: Cross multiply
    651,775.80x = 899,543.30 × 361,451.94
  4. Step 4: Simplify right side
    651,775.80x = 325,141,665,718.46
  5. Step 5: Solve for x
    x = 325,141,665,718.46/651,775.80
  6. Step 6: Final answer
    x = 498,855.07

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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.