Home / 1,039,720.38-1,556,032.05-871,430.82

Finding the Fourth Proportional to 1,039,720.38, 1,556,032.05 and 871,430.82

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Solution

The fourth proportional to 1,039,720.38, 1,556,032.05 and 871,430.82 is: 1,304,172.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,720.38 : 1,556,032.05 = 871,430.82 : x
  2. Step 2: Convert to fraction form
    1,039,720.38/1,556,032.05 = 871,430.82/x
  3. Step 3: Cross multiply
    1,039,720.38x = 1,556,032.05 × 871,430.82
  4. Step 4: Simplify right side
    1,039,720.38x = 1,355,974,285,277.78
  5. Step 5: Solve for x
    x = 1,355,974,285,277.78/1,039,720.38
  6. Step 6: Final answer
    x = 1,304,172.07

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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.