Home / 1,223,878.32-1,688,915.52-672,595.92

Finding the Fourth Proportional to 1,223,878.32, 1,688,915.52 and 672,595.92

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Solution

The fourth proportional to 1,223,878.32, 1,688,915.52 and 672,595.92 is: 928,162.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,878.32 : 1,688,915.52 = 672,595.92 : x
  2. Step 2: Convert to fraction form
    1,223,878.32/1,688,915.52 = 672,595.92/x
  3. Step 3: Cross multiply
    1,223,878.32x = 1,688,915.52 × 672,595.92
  4. Step 4: Simplify right side
    1,223,878.32x = 1,135,957,687,976.68
  5. Step 5: Solve for x
    x = 1,135,957,687,976.68/1,223,878.32
  6. Step 6: Final answer
    x = 928,162.28

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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.