Home / 1,620,689.40-2,432,559.53-822,543.75

Finding the Fourth Proportional to 1,620,689.40, 2,432,559.53 and 822,543.75

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Solution

The fourth proportional to 1,620,689.40, 2,432,559.53 and 822,543.75 is: 1,234,589.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,689.40 : 2,432,559.53 = 822,543.75 : x
  2. Step 2: Convert to fraction form
    1,620,689.40/2,432,559.53 = 822,543.75/x
  3. Step 3: Cross multiply
    1,620,689.40x = 2,432,559.53 × 822,543.75
  4. Step 4: Simplify right side
    1,620,689.40x = 2,000,886,639,960.80
  5. Step 5: Solve for x
    x = 2,000,886,639,960.80/1,620,689.40
  6. Step 6: Final answer
    x = 1,234,589.82

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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.