Home / 1,390,736.61-2,086,816.86-662,084.46

Finding the Fourth Proportional to 1,390,736.61, 2,086,816.86 and 662,084.46

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Solution

The fourth proportional to 1,390,736.61, 2,086,816.86 and 662,084.46 is: 993,465.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,736.61 : 2,086,816.86 = 662,084.46 : x
  2. Step 2: Convert to fraction form
    1,390,736.61/2,086,816.86 = 662,084.46/x
  3. Step 3: Cross multiply
    1,390,736.61x = 2,086,816.86 × 662,084.46
  4. Step 4: Simplify right side
    1,390,736.61x = 1,381,649,013,872.00
  5. Step 5: Solve for x
    x = 1,381,649,013,872.00/1,390,736.61
  6. Step 6: Final answer
    x = 993,465.62

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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.