Home / 1,657,371.35-2,287,196.05-978,307.85

Finding the Fourth Proportional to 1,657,371.35, 2,287,196.05 and 978,307.85

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Solution

The fourth proportional to 1,657,371.35, 2,287,196.05 and 978,307.85 is: 1,350,078.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657,371.35 : 2,287,196.05 = 978,307.85 : x
  2. Step 2: Convert to fraction form
    1,657,371.35/2,287,196.05 = 978,307.85/x
  3. Step 3: Cross multiply
    1,657,371.35x = 2,287,196.05 × 978,307.85
  4. Step 4: Simplify right side
    1,657,371.35x = 2,237,581,836,322.24
  5. Step 5: Solve for x
    x = 2,237,581,836,322.24/1,657,371.35
  6. Step 6: Final answer
    x = 1,350,078.75

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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.