Home / 830,331.40-1,247,829.90-727,688.20

Finding the Fourth Proportional to 830,331.40, 1,247,829.90 and 727,688.20

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Solution

The fourth proportional to 830,331.40, 1,247,829.90 and 727,688.20 is: 1,093,576.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,331.40 : 1,247,829.90 = 727,688.20 : x
  2. Step 2: Convert to fraction form
    830,331.40/1,247,829.90 = 727,688.20/x
  3. Step 3: Cross multiply
    830,331.40x = 1,247,829.90 × 727,688.20
  4. Step 4: Simplify right side
    830,331.40x = 908,031,093,837.18
  5. Step 5: Solve for x
    x = 908,031,093,837.18/830,331.40
  6. Step 6: Final answer
    x = 1,093,576.73

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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.