Home / 912,138.30-1,368,207.45-885,894.30

Finding the Fourth Proportional to 912,138.30, 1,368,207.45 and 885,894.30

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Solution

The fourth proportional to 912,138.30, 1,368,207.45 and 885,894.30 is: 1,328,841.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,138.30 : 1,368,207.45 = 885,894.30 : x
  2. Step 2: Convert to fraction form
    912,138.30/1,368,207.45 = 885,894.30/x
  3. Step 3: Cross multiply
    912,138.30x = 1,368,207.45 × 885,894.30
  4. Step 4: Simplify right side
    912,138.30x = 1,212,087,181,172.53
  5. Step 5: Solve for x
    x = 1,212,087,181,172.53/912,138.30
  6. Step 6: Final answer
    x = 1,328,841.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.