Home / 611,619.60-917,429.40-372,471.15

Finding the Fourth Proportional to 611,619.60, 917,429.40 and 372,471.15

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Solution

The fourth proportional to 611,619.60, 917,429.40 and 372,471.15 is: 558,706.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,619.60 : 917,429.40 = 372,471.15 : x
  2. Step 2: Convert to fraction form
    611,619.60/917,429.40 = 372,471.15/x
  3. Step 3: Cross multiply
    611,619.60x = 917,429.40 × 372,471.15
  4. Step 4: Simplify right side
    611,619.60x = 341,715,983,661.81
  5. Step 5: Solve for x
    x = 341,715,983,661.81/611,619.60
  6. Step 6: Final answer
    x = 558,706.73

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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.