Home / 2,121,123.26-2,927,211.70-1,154,315.90

Finding the Fourth Proportional to 2,121,123.26, 2,927,211.70 and 1,154,315.90

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Solution

The fourth proportional to 2,121,123.26, 2,927,211.70 and 1,154,315.90 is: 1,592,989.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121,123.26 : 2,927,211.70 = 1,154,315.90 : x
  2. Step 2: Convert to fraction form
    2,121,123.26/2,927,211.70 = 1,154,315.90/x
  3. Step 3: Cross multiply
    2,121,123.26x = 2,927,211.70 × 1,154,315.90
  4. Step 4: Simplify right side
    2,121,123.26x = 3,378,927,002,204.45
  5. Step 5: Solve for x
    x = 3,378,927,002,204.45/2,121,123.26
  6. Step 6: Final answer
    x = 1,592,989.46

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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.