Home / 1,520,006.40-2,097,593.28-840,947.76

Finding the Fourth Proportional to 1,520,006.40, 2,097,593.28 and 840,947.76

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Solution

The fourth proportional to 1,520,006.40, 2,097,593.28 and 840,947.76 is: 1,160,499.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,006.40 : 2,097,593.28 = 840,947.76 : x
  2. Step 2: Convert to fraction form
    1,520,006.40/2,097,593.28 = 840,947.76/x
  3. Step 3: Cross multiply
    1,520,006.40x = 2,097,593.28 × 840,947.76
  4. Step 4: Simplify right side
    1,520,006.40x = 1,763,966,370,207.05
  5. Step 5: Solve for x
    x = 1,763,966,370,207.05/1,520,006.40
  6. Step 6: Final answer
    x = 1,160,499.30

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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.