Home / 842,562.91-1,162,744.55-479,981.40

Finding the Fourth Proportional to 842,562.91, 1,162,744.55 and 479,981.40

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Solution

The fourth proportional to 842,562.91, 1,162,744.55 and 479,981.40 is: 662,378.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,562.91 : 1,162,744.55 = 479,981.40 : x
  2. Step 2: Convert to fraction form
    842,562.91/1,162,744.55 = 479,981.40/x
  3. Step 3: Cross multiply
    842,562.91x = 1,162,744.55 × 479,981.40
  4. Step 4: Simplify right side
    842,562.91x = 558,095,756,951.37
  5. Step 5: Solve for x
    x = 558,095,756,951.37/842,562.91
  6. Step 6: Final answer
    x = 662,378.74

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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.