Home / 1,306,475.46-1,959,712.47-407,994.21

Finding the Fourth Proportional to 1,306,475.46, 1,959,712.47 and 407,994.21

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Solution

The fourth proportional to 1,306,475.46, 1,959,712.47 and 407,994.21 is: 611,991.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,475.46 : 1,959,712.47 = 407,994.21 : x
  2. Step 2: Convert to fraction form
    1,306,475.46/1,959,712.47 = 407,994.21/x
  3. Step 3: Cross multiply
    1,306,475.46x = 1,959,712.47 × 407,994.21
  4. Step 4: Simplify right side
    1,306,475.46x = 799,551,341,024.80
  5. Step 5: Solve for x
    x = 799,551,341,024.80/1,306,475.46
  6. Step 6: Final answer
    x = 611,991.09

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Double scale
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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.