Home / 1,141,402.79-1,712,217.49-421,933.05

Finding the Fourth Proportional to 1,141,402.79, 1,712,217.49 and 421,933.05

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Solution

The fourth proportional to 1,141,402.79, 1,712,217.49 and 421,933.05 is: 632,941.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,141,402.79 : 1,712,217.49 = 421,933.05 : x
  2. Step 2: Convert to fraction form
    1,141,402.79/1,712,217.49 = 421,933.05/x
  3. Step 3: Cross multiply
    1,141,402.79x = 1,712,217.49 × 421,933.05
  4. Step 4: Simplify right side
    1,141,402.79x = 722,441,146,764.21
  5. Step 5: Solve for x
    x = 722,441,146,764.21/1,141,402.79
  6. Step 6: Final answer
    x = 632,941.46

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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.