Home / 887,129.70-1,331,569.35-438,357.30

Finding the Fourth Proportional to 887,129.70, 1,331,569.35 and 438,357.30

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Solution

The fourth proportional to 887,129.70, 1,331,569.35 and 438,357.30 is: 657,968.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,129.70 : 1,331,569.35 = 438,357.30 : x
  2. Step 2: Convert to fraction form
    887,129.70/1,331,569.35 = 438,357.30/x
  3. Step 3: Cross multiply
    887,129.70x = 1,331,569.35 × 438,357.30
  4. Step 4: Simplify right side
    887,129.70x = 583,703,145,028.76
  5. Step 5: Solve for x
    x = 583,703,145,028.76/887,129.70
  6. Step 6: Final answer
    x = 657,968.21

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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.