Home / 807,543.10-1,211,023.05-408,051.10

Finding the Fourth Proportional to 807,543.10, 1,211,023.05 and 408,051.10

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Solution

The fourth proportional to 807,543.10, 1,211,023.05 and 408,051.10 is: 611,929.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,543.10 : 1,211,023.05 = 408,051.10 : x
  2. Step 2: Convert to fraction form
    807,543.10/1,211,023.05 = 408,051.10/x
  3. Step 3: Cross multiply
    807,543.10x = 1,211,023.05 × 408,051.10
  4. Step 4: Simplify right side
    807,543.10x = 494,159,287,677.86
  5. Step 5: Solve for x
    x = 494,159,287,677.86/807,543.10
  6. Step 6: Final answer
    x = 611,929.30

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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.