Home / 877,616.20-1,316,424.30-809,187.40

Finding the Fourth Proportional to 877,616.20, 1,316,424.30 and 809,187.40

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Solution

The fourth proportional to 877,616.20, 1,316,424.30 and 809,187.40 is: 1,213,781.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,616.20 : 1,316,424.30 = 809,187.40 : x
  2. Step 2: Convert to fraction form
    877,616.20/1,316,424.30 = 809,187.40/x
  3. Step 3: Cross multiply
    877,616.20x = 1,316,424.30 × 809,187.40
  4. Step 4: Simplify right side
    877,616.20x = 1,065,233,956,613.82
  5. Step 5: Solve for x
    x = 1,065,233,956,613.82/877,616.20
  6. Step 6: Final answer
    x = 1,213,781.10

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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.