Home / 397,718.10-596,577.15-318,986.10

Finding the Fourth Proportional to 397,718.10, 596,577.15 and 318,986.10

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Solution

The fourth proportional to 397,718.10, 596,577.15 and 318,986.10 is: 478,479.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,718.10 : 596,577.15 = 318,986.10 : x
  2. Step 2: Convert to fraction form
    397,718.10/596,577.15 = 318,986.10/x
  3. Step 3: Cross multiply
    397,718.10x = 596,577.15 × 318,986.10
  4. Step 4: Simplify right side
    397,718.10x = 190,299,818,427.62
  5. Step 5: Solve for x
    x = 190,299,818,427.62/397,718.10
  6. Step 6: Final answer
    x = 478,479.15

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Similar ratio
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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.