Home / 1,220,065.50-1,828,828.98-409,848.84

Finding the Fourth Proportional to 1,220,065.50, 1,828,828.98 and 409,848.84

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Solution

The fourth proportional to 1,220,065.50, 1,828,828.98 and 409,848.84 is: 614,346.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,065.50 : 1,828,828.98 = 409,848.84 : x
  2. Step 2: Convert to fraction form
    1,220,065.50/1,828,828.98 = 409,848.84/x
  3. Step 3: Cross multiply
    1,220,065.50x = 1,828,828.98 × 409,848.84
  4. Step 4: Simplify right side
    1,220,065.50x = 749,543,436,011.38
  5. Step 5: Solve for x
    x = 749,543,436,011.38/1,220,065.50
  6. Step 6: Final answer
    x = 614,346.88

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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.