Home / 1,345,315.92-1,856,451.60-771,952.56

Finding the Fourth Proportional to 1,345,315.92, 1,856,451.60 and 771,952.56

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Solution

The fourth proportional to 1,345,315.92, 1,856,451.60 and 771,952.56 is: 1,065,246.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,315.92 : 1,856,451.60 = 771,952.56 : x
  2. Step 2: Convert to fraction form
    1,345,315.92/1,856,451.60 = 771,952.56/x
  3. Step 3: Cross multiply
    1,345,315.92x = 1,856,451.60 × 771,952.56
  4. Step 4: Simplify right side
    1,345,315.92x = 1,433,092,565,136.10
  5. Step 5: Solve for x
    x = 1,433,092,565,136.10/1,345,315.92
  6. Step 6: Final answer
    x = 1,065,246.12

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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.