Home / 1,570,902.31-2,169,123.57-1,280,559.43

Finding the Fourth Proportional to 1,570,902.31, 2,169,123.57 and 1,280,559.43

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Solution

The fourth proportional to 1,570,902.31, 2,169,123.57 and 1,280,559.43 is: 1,768,214.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570,902.31 : 2,169,123.57 = 1,280,559.43 : x
  2. Step 2: Convert to fraction form
    1,570,902.31/2,169,123.57 = 1,280,559.43/x
  3. Step 3: Cross multiply
    1,570,902.31x = 2,169,123.57 × 1,280,559.43
  4. Step 4: Simplify right side
    1,570,902.31x = 2,777,691,642,398.76
  5. Step 5: Solve for x
    x = 2,777,691,642,398.76/1,570,902.31
  6. Step 6: Final answer
    x = 1,768,214.12

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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.