Home / 1,555,439.60-2,146,506.20-840,047.60

Finding the Fourth Proportional to 1,555,439.60, 2,146,506.20 and 840,047.60

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Solution

The fourth proportional to 1,555,439.60, 2,146,506.20 and 840,047.60 is: 1,159,265.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,439.60 : 2,146,506.20 = 840,047.60 : x
  2. Step 2: Convert to fraction form
    1,555,439.60/2,146,506.20 = 840,047.60/x
  3. Step 3: Cross multiply
    1,555,439.60x = 2,146,506.20 × 840,047.60
  4. Step 4: Simplify right side
    1,555,439.60x = 1,803,167,381,695.12
  5. Step 5: Solve for x
    x = 1,803,167,381,695.12/1,555,439.60
  6. Step 6: Final answer
    x = 1,159,265.45

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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.