Home / 986,743.24-1,480,705.36-425,777.76

Finding the Fourth Proportional to 986,743.24, 1,480,705.36 and 425,777.76

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Solution

The fourth proportional to 986,743.24, 1,480,705.36 and 425,777.76 is: 638,921.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,743.24 : 1,480,705.36 = 425,777.76 : x
  2. Step 2: Convert to fraction form
    986,743.24/1,480,705.36 = 425,777.76/x
  3. Step 3: Cross multiply
    986,743.24x = 1,480,705.36 × 425,777.76
  4. Step 4: Simplify right side
    986,743.24x = 630,451,411,400.79
  5. Step 5: Solve for x
    x = 630,451,411,400.79/986,743.24
  6. Step 6: Final answer
    x = 638,921.44

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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.