Home / 1,121,488.35-1,547,687.30-637,963.71

Finding the Fourth Proportional to 1,121,488.35, 1,547,687.30 and 637,963.71

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Solution

The fourth proportional to 1,121,488.35, 1,547,687.30 and 637,963.71 is: 880,408.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,488.35 : 1,547,687.30 = 637,963.71 : x
  2. Step 2: Convert to fraction form
    1,121,488.35/1,547,687.30 = 637,963.71/x
  3. Step 3: Cross multiply
    1,121,488.35x = 1,547,687.30 × 637,963.71
  4. Step 4: Simplify right side
    1,121,488.35x = 987,368,328,638.06
  5. Step 5: Solve for x
    x = 987,368,328,638.06/1,121,488.35
  6. Step 6: Final answer
    x = 880,408.90

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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.