Home / 1,325,389.40-1,988,084.10-926,480.60

Finding the Fourth Proportional to 1,325,389.40, 1,988,084.10 and 926,480.60

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Solution

The fourth proportional to 1,325,389.40, 1,988,084.10 and 926,480.60 is: 1,389,720.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,389.40 : 1,988,084.10 = 926,480.60 : x
  2. Step 2: Convert to fraction form
    1,325,389.40/1,988,084.10 = 926,480.60/x
  3. Step 3: Cross multiply
    1,325,389.40x = 1,988,084.10 × 926,480.60
  4. Step 4: Simplify right side
    1,325,389.40x = 1,841,921,349,818.46
  5. Step 5: Solve for x
    x = 1,841,921,349,818.46/1,325,389.40
  6. Step 6: Final answer
    x = 1,389,720.90

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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.