Home / 1,189,326.16-1,641,270.95-645,461.82

Finding the Fourth Proportional to 1,189,326.16, 1,641,270.95 and 645,461.82

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Solution

The fourth proportional to 1,189,326.16, 1,641,270.95 and 645,461.82 is: 890,737.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,326.16 : 1,641,270.95 = 645,461.82 : x
  2. Step 2: Convert to fraction form
    1,189,326.16/1,641,270.95 = 645,461.82/x
  3. Step 3: Cross multiply
    1,189,326.16x = 1,641,270.95 × 645,461.82
  4. Step 4: Simplify right side
    1,189,326.16x = 1,059,377,734,500.13
  5. Step 5: Solve for x
    x = 1,059,377,734,500.13/1,189,326.16
  6. Step 6: Final answer
    x = 890,737.77

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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.