Home / 621,272.84-931,318.70-396,000.90

Finding the Fourth Proportional to 621,272.84, 931,318.70 and 396,000.90

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Solution

The fourth proportional to 621,272.84, 931,318.70 and 396,000.90 is: 593,624.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,272.84 : 931,318.70 = 396,000.90 : x
  2. Step 2: Convert to fraction form
    621,272.84/931,318.70 = 396,000.90/x
  3. Step 3: Cross multiply
    621,272.84x = 931,318.70 × 396,000.90
  4. Step 4: Simplify right side
    621,272.84x = 368,803,041,406.83
  5. Step 5: Solve for x
    x = 368,803,041,406.83/621,272.84
  6. Step 6: Final answer
    x = 593,624.93

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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.