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Finding the Fourth Proportional to 586,301.80, 880,035.90 and 287,120.20

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Solution

The fourth proportional to 586,301.80, 880,035.90 and 287,120.20 is: 430,965.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,301.80 : 880,035.90 = 287,120.20 : x
  2. Step 2: Convert to fraction form
    586,301.80/880,035.90 = 287,120.20/x
  3. Step 3: Cross multiply
    586,301.80x = 880,035.90 × 287,120.20
  4. Step 4: Simplify right side
    586,301.80x = 252,676,083,615.18
  5. Step 5: Solve for x
    x = 252,676,083,615.18/586,301.80
  6. Step 6: Final answer
    x = 430,965.90

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1.5x scale

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.