Home / 871,970.80-1,307,420.94-338,869.36

Finding the Fourth Proportional to 871,970.80, 1,307,420.94 and 338,869.36

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Solution

The fourth proportional to 871,970.80, 1,307,420.94 and 338,869.36 is: 508,096.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,970.80 : 1,307,420.94 = 338,869.36 : x
  2. Step 2: Convert to fraction form
    871,970.80/1,307,420.94 = 338,869.36/x
  3. Step 3: Cross multiply
    871,970.80x = 1,307,420.94 × 338,869.36
  4. Step 4: Simplify right side
    871,970.80x = 443,044,897,188.40
  5. Step 5: Solve for x
    x = 443,044,897,188.40/871,970.80
  6. Step 6: Final answer
    x = 508,096.02

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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.