Home / 1,215,009.11-1,676,702.05-671,182.86

Finding the Fourth Proportional to 1,215,009.11, 1,676,702.05 and 671,182.86

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Solution

The fourth proportional to 1,215,009.11, 1,676,702.05 and 671,182.86 is: 926,226.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,009.11 : 1,676,702.05 = 671,182.86 : x
  2. Step 2: Convert to fraction form
    1,215,009.11/1,676,702.05 = 671,182.86/x
  3. Step 3: Cross multiply
    1,215,009.11x = 1,676,702.05 × 671,182.86
  4. Step 4: Simplify right side
    1,215,009.11x = 1,125,373,674,352.79
  5. Step 5: Solve for x
    x = 1,125,373,674,352.79/1,215,009.11
  6. Step 6: Final answer
    x = 926,226.53

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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.