Home / 1,381,258.70-2,072,114.85-434,401.10

Finding the Fourth Proportional to 1,381,258.70, 2,072,114.85 and 434,401.10

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Solution

The fourth proportional to 1,381,258.70, 2,072,114.85 and 434,401.10 is: 651,672.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,258.70 : 2,072,114.85 = 434,401.10 : x
  2. Step 2: Convert to fraction form
    1,381,258.70/2,072,114.85 = 434,401.10/x
  3. Step 3: Cross multiply
    1,381,258.70x = 2,072,114.85 × 434,401.10
  4. Step 4: Simplify right side
    1,381,258.70x = 900,128,970,166.34
  5. Step 5: Solve for x
    x = 900,128,970,166.34/1,381,258.70
  6. Step 6: Final answer
    x = 651,672.98

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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.