Home / 970,291.20-1,455,436.80-543,388.80

Finding the Fourth Proportional to 970,291.20, 1,455,436.80 and 543,388.80

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Solution

The fourth proportional to 970,291.20, 1,455,436.80 and 543,388.80 is: 815,083.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,291.20 : 1,455,436.80 = 543,388.80 : x
  2. Step 2: Convert to fraction form
    970,291.20/1,455,436.80 = 543,388.80/x
  3. Step 3: Cross multiply
    970,291.20x = 1,455,436.80 × 543,388.80
  4. Step 4: Simplify right side
    970,291.20x = 790,868,056,227.84
  5. Step 5: Solve for x
    x = 790,868,056,227.84/970,291.20
  6. Step 6: Final answer
    x = 815,083.20

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1.5x scale

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.