Home / 871,971.30-1,307,421.69-338,869.86

Finding the Fourth Proportional to 871,971.30, 1,307,421.69 and 338,869.86

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Solution

The fourth proportional to 871,971.30, 1,307,421.69 and 338,869.86 is: 508,096.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,971.30 : 1,307,421.69 = 338,869.86 : x
  2. Step 2: Convert to fraction form
    871,971.30/1,307,421.69 = 338,869.86/x
  3. Step 3: Cross multiply
    871,971.30x = 1,307,421.69 × 338,869.86
  4. Step 4: Simplify right side
    871,971.30x = 443,045,805,051.26
  5. Step 5: Solve for x
    x = 443,045,805,051.26/871,971.30
  6. Step 6: Final answer
    x = 508,096.77

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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.