Home / 788,399.16-1,087,990.50-425,822.88

Finding the Fourth Proportional to 788,399.16, 1,087,990.50 and 425,822.88

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Solution

The fourth proportional to 788,399.16, 1,087,990.50 and 425,822.88 is: 587,635.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,399.16 : 1,087,990.50 = 425,822.88 : x
  2. Step 2: Convert to fraction form
    788,399.16/1,087,990.50 = 425,822.88/x
  3. Step 3: Cross multiply
    788,399.16x = 1,087,990.50 × 425,822.88
  4. Step 4: Simplify right side
    788,399.16x = 463,291,248,122.64
  5. Step 5: Solve for x
    x = 463,291,248,122.64/788,399.16
  6. Step 6: Final answer
    x = 587,635.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.