Home / 843,289.20-1,164,300.48-499,236.12

Finding the Fourth Proportional to 843,289.20, 1,164,300.48 and 499,236.12

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Solution

The fourth proportional to 843,289.20, 1,164,300.48 and 499,236.12 is: 689,278.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,289.20 : 1,164,300.48 = 499,236.12 : x
  2. Step 2: Convert to fraction form
    843,289.20/1,164,300.48 = 499,236.12/x
  3. Step 3: Cross multiply
    843,289.20x = 1,164,300.48 × 499,236.12
  4. Step 4: Simplify right side
    843,289.20x = 581,260,854,149.34
  5. Step 5: Solve for x
    x = 581,260,854,149.34/843,289.20
  6. Step 6: Final answer
    x = 689,278.19

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Double scale
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1.5x scale

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.