Home / 1,108,130.60-1,659,863.10-921,506.60

Finding the Fourth Proportional to 1,108,130.60, 1,659,863.10 and 921,506.60

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Solution

The fourth proportional to 1,108,130.60, 1,659,863.10 and 921,506.60 is: 1,380,319.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,130.60 : 1,659,863.10 = 921,506.60 : x
  2. Step 2: Convert to fraction form
    1,108,130.60/1,659,863.10 = 921,506.60/x
  3. Step 3: Cross multiply
    1,108,130.60x = 1,659,863.10 × 921,506.60
  4. Step 4: Simplify right side
    1,108,130.60x = 1,529,574,801,746.46
  5. Step 5: Solve for x
    x = 1,529,574,801,746.46/1,108,130.60
  6. Step 6: Final answer
    x = 1,380,319.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.