Home / 971,210.40-1,456,815.60-770,443.80

Finding the Fourth Proportional to 971,210.40, 1,456,815.60 and 770,443.80

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Solution

The fourth proportional to 971,210.40, 1,456,815.60 and 770,443.80 is: 1,155,665.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,210.40 : 1,456,815.60 = 770,443.80 : x
  2. Step 2: Convert to fraction form
    971,210.40/1,456,815.60 = 770,443.80/x
  3. Step 3: Cross multiply
    971,210.40x = 1,456,815.60 × 770,443.80
  4. Step 4: Simplify right side
    971,210.40x = 1,122,394,546,763.28
  5. Step 5: Solve for x
    x = 1,122,394,546,763.28/971,210.40
  6. Step 6: Final answer
    x = 1,155,665.70

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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.