Home / 1,078,970.40-1,616,122.80-960,775.20

Finding the Fourth Proportional to 1,078,970.40, 1,616,122.80 and 960,775.20

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Solution

The fourth proportional to 1,078,970.40, 1,616,122.80 and 960,775.20 is: 1,439,085.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,970.40 : 1,616,122.80 = 960,775.20 : x
  2. Step 2: Convert to fraction form
    1,078,970.40/1,616,122.80 = 960,775.20/x
  3. Step 3: Cross multiply
    1,078,970.40x = 1,616,122.80 × 960,775.20
  4. Step 4: Simplify right side
    1,078,970.40x = 1,552,730,706,394.56
  5. Step 5: Solve for x
    x = 1,552,730,706,394.56/1,078,970.40
  6. Step 6: Final answer
    x = 1,439,085.55

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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.