Home / 856,937.38-1,182,612.15-489,446.45

Finding the Fourth Proportional to 856,937.38, 1,182,612.15 and 489,446.45

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Solution

The fourth proportional to 856,937.38, 1,182,612.15 and 489,446.45 is: 675,458.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,937.38 : 1,182,612.15 = 489,446.45 : x
  2. Step 2: Convert to fraction form
    856,937.38/1,182,612.15 = 489,446.45/x
  3. Step 3: Cross multiply
    856,937.38x = 1,182,612.15 × 489,446.45
  4. Step 4: Simplify right side
    856,937.38x = 578,825,318,544.37
  5. Step 5: Solve for x
    x = 578,825,318,544.37/856,937.38
  6. Step 6: Final answer
    x = 675,458.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.