Home / 856,722.40-1,285,083.60-817,356.40

Finding the Fourth Proportional to 856,722.40, 1,285,083.60 and 817,356.40

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Solution

The fourth proportional to 856,722.40, 1,285,083.60 and 817,356.40 is: 1,226,034.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,722.40 : 1,285,083.60 = 817,356.40 : x
  2. Step 2: Convert to fraction form
    856,722.40/1,285,083.60 = 817,356.40/x
  3. Step 3: Cross multiply
    856,722.40x = 1,285,083.60 × 817,356.40
  4. Step 4: Simplify right side
    856,722.40x = 1,050,371,304,995.04
  5. Step 5: Solve for x
    x = 1,050,371,304,995.04/856,722.40
  6. Step 6: Final answer
    x = 1,226,034.60

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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.