Home / 1,372,373.92-1,891,511.52-912,666.88

Finding the Fourth Proportional to 1,372,373.92, 1,891,511.52 and 912,666.88

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Solution

The fourth proportional to 1,372,373.92, 1,891,511.52 and 912,666.88 is: 1,257,907.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372,373.92 : 1,891,511.52 = 912,666.88 : x
  2. Step 2: Convert to fraction form
    1,372,373.92/1,891,511.52 = 912,666.88/x
  3. Step 3: Cross multiply
    1,372,373.92x = 1,891,511.52 × 912,666.88
  4. Step 4: Simplify right side
    1,372,373.92x = 1,726,319,917,442.46
  5. Step 5: Solve for x
    x = 1,726,319,917,442.46/1,372,373.92
  6. Step 6: Final answer
    x = 1,257,907.84

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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.