Home / 1,245,648.80-1,718,995.32-672,688.95

Finding the Fourth Proportional to 1,245,648.80, 1,718,995.32 and 672,688.95

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Solution

The fourth proportional to 1,245,648.80, 1,718,995.32 and 672,688.95 is: 928,310.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,648.80 : 1,718,995.32 = 672,688.95 : x
  2. Step 2: Convert to fraction form
    1,245,648.80/1,718,995.32 = 672,688.95/x
  3. Step 3: Cross multiply
    1,245,648.80x = 1,718,995.32 × 672,688.95
  4. Step 4: Simplify right side
    1,245,648.80x = 1,156,349,156,865.71
  5. Step 5: Solve for x
    x = 1,156,349,156,865.71/1,245,648.80
  6. Step 6: Final answer
    x = 928,310.74

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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.