Home / 871,386.60-1,307,118.30-492,301.80

Finding the Fourth Proportional to 871,386.60, 1,307,118.30 and 492,301.80

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Solution

The fourth proportional to 871,386.60, 1,307,118.30 and 492,301.80 is: 738,474.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,386.60 : 1,307,118.30 = 492,301.80 : x
  2. Step 2: Convert to fraction form
    871,386.60/1,307,118.30 = 492,301.80/x
  3. Step 3: Cross multiply
    871,386.60x = 1,307,118.30 × 492,301.80
  4. Step 4: Simplify right side
    871,386.60x = 643,496,691,902.94
  5. Step 5: Solve for x
    x = 643,496,691,902.94/871,386.60
  6. Step 6: Final answer
    x = 738,474.39

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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.