Home / 986,863.80-1,480,295.70-425,898.30

Finding the Fourth Proportional to 986,863.80, 1,480,295.70 and 425,898.30

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Solution

The fourth proportional to 986,863.80, 1,480,295.70 and 425,898.30 is: 638,847.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,863.80 : 1,480,295.70 = 425,898.30 : x
  2. Step 2: Convert to fraction form
    986,863.80/1,480,295.70 = 425,898.30/x
  3. Step 3: Cross multiply
    986,863.80x = 1,480,295.70 × 425,898.30
  4. Step 4: Simplify right side
    986,863.80x = 630,455,422,127.31
  5. Step 5: Solve for x
    x = 630,455,422,127.31/986,863.80
  6. Step 6: Final answer
    x = 638,847.45

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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.