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Finding the Fourth Proportional to 660,281.01, 990,290.29 and 323,176.83

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Solution

The fourth proportional to 660,281.01, 990,290.29 and 323,176.83 is: 484,701.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,281.01 : 990,290.29 = 323,176.83 : x
  2. Step 2: Convert to fraction form
    660,281.01/990,290.29 = 323,176.83/x
  3. Step 3: Cross multiply
    660,281.01x = 990,290.29 × 323,176.83
  4. Step 4: Simplify right side
    660,281.01x = 320,038,876,701.98
  5. Step 5: Solve for x
    x = 320,038,876,701.98/660,281.01
  6. Step 6: Final answer
    x = 484,701.02

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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.