Home / 843,427.20-1,265,140.80-282,461.70

Finding the Fourth Proportional to 843,427.20, 1,265,140.80 and 282,461.70

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Solution

The fourth proportional to 843,427.20, 1,265,140.80 and 282,461.70 is: 423,692.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,427.20 : 1,265,140.80 = 282,461.70 : x
  2. Step 2: Convert to fraction form
    843,427.20/1,265,140.80 = 282,461.70/x
  3. Step 3: Cross multiply
    843,427.20x = 1,265,140.80 × 282,461.70
  4. Step 4: Simplify right side
    843,427.20x = 357,353,821,107.36
  5. Step 5: Solve for x
    x = 357,353,821,107.36/843,427.20
  6. Step 6: Final answer
    x = 423,692.55

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Double scale
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Similar ratio
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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.