Home / 1,121,498.70-1,547,648.31-638,053.44

Finding the Fourth Proportional to 1,121,498.70, 1,547,648.31 and 638,053.44

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Solution

The fourth proportional to 1,121,498.70, 1,547,648.31 and 638,053.44 is: 880,502.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,498.70 : 1,547,648.31 = 638,053.44 : x
  2. Step 2: Convert to fraction form
    1,121,498.70/1,547,648.31 = 638,053.44/x
  3. Step 3: Cross multiply
    1,121,498.70x = 1,547,648.31 × 638,053.44
  4. Step 4: Simplify right side
    1,121,498.70x = 987,482,328,105.69
  5. Step 5: Solve for x
    x = 987,482,328,105.69/1,121,498.70
  6. Step 6: Final answer
    x = 880,502.43

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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.