Home / 986,864.80-1,480,297.20-425,899.30

Finding the Fourth Proportional to 986,864.80, 1,480,297.20 and 425,899.30

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Solution

The fourth proportional to 986,864.80, 1,480,297.20 and 425,899.30 is: 638,848.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,864.80 : 1,480,297.20 = 425,899.30 : x
  2. Step 2: Convert to fraction form
    986,864.80/1,480,297.20 = 425,899.30/x
  3. Step 3: Cross multiply
    986,864.80x = 1,480,297.20 × 425,899.30
  4. Step 4: Simplify right side
    986,864.80x = 630,457,541,271.96
  5. Step 5: Solve for x
    x = 630,457,541,271.96/986,864.80
  6. Step 6: Final answer
    x = 638,848.95

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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.