Home / 1,306,370.40-1,959,562.52-407,736.88

Finding the Fourth Proportional to 1,306,370.40, 1,959,562.52 and 407,736.88

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Solution

The fourth proportional to 1,306,370.40, 1,959,562.52 and 407,736.88 is: 611,607.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,370.40 : 1,959,562.52 = 407,736.88 : x
  2. Step 2: Convert to fraction form
    1,306,370.40/1,959,562.52 = 407,736.88/x
  3. Step 3: Cross multiply
    1,306,370.40x = 1,959,562.52 × 407,736.88
  4. Step 4: Simplify right side
    1,306,370.40x = 798,985,908,069.74
  5. Step 5: Solve for x
    x = 798,985,908,069.74/1,306,370.40
  6. Step 6: Final answer
    x = 611,607.48

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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.