Home / 986,639.55-1,479,702.43-417,727.81

Finding the Fourth Proportional to 986,639.55, 1,479,702.43 and 417,727.81

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Solution

The fourth proportional to 986,639.55, 1,479,702.43 and 417,727.81 is: 626,482.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,639.55 : 1,479,702.43 = 417,727.81 : x
  2. Step 2: Convert to fraction form
    986,639.55/1,479,702.43 = 417,727.81/x
  3. Step 3: Cross multiply
    986,639.55x = 1,479,702.43 × 417,727.81
  4. Step 4: Simplify right side
    986,639.55x = 618,112,853,163.79
  5. Step 5: Solve for x
    x = 618,112,853,163.79/986,639.55
  6. Step 6: Final answer
    x = 626,482.95

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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.