Home / 843,503.40-1,265,255.10-344,750.76

Finding the Fourth Proportional to 843,503.40, 1,265,255.10 and 344,750.76

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Solution

The fourth proportional to 843,503.40, 1,265,255.10 and 344,750.76 is: 517,126.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,503.40 : 1,265,255.10 = 344,750.76 : x
  2. Step 2: Convert to fraction form
    843,503.40/1,265,255.10 = 344,750.76/x
  3. Step 3: Cross multiply
    843,503.40x = 1,265,255.10 × 344,750.76
  4. Step 4: Simplify right side
    843,503.40x = 436,197,657,318.88
  5. Step 5: Solve for x
    x = 436,197,657,318.88/843,503.40
  6. Step 6: Final answer
    x = 517,126.14

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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.