Home / 1,528,876.88-2,109,851.44-840,560.45

Finding the Fourth Proportional to 1,528,876.88, 2,109,851.44 and 840,560.45

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Solution

The fourth proportional to 1,528,876.88, 2,109,851.44 and 840,560.45 is: 1,159,974.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,876.88 : 2,109,851.44 = 840,560.45 : x
  2. Step 2: Convert to fraction form
    1,528,876.88/2,109,851.44 = 840,560.45/x
  3. Step 3: Cross multiply
    1,528,876.88x = 2,109,851.44 × 840,560.45
  4. Step 4: Simplify right side
    1,528,876.88x = 1,773,457,675,839.55
  5. Step 5: Solve for x
    x = 1,773,457,675,839.55/1,528,876.88
  6. Step 6: Final answer
    x = 1,159,974.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.