Home / 779,084.62-1,170,681.85-419,521.32

Finding the Fourth Proportional to 779,084.62, 1,170,681.85 and 419,521.32

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Solution

The fourth proportional to 779,084.62, 1,170,681.85 and 419,521.32 is: 630,388.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,084.62 : 1,170,681.85 = 419,521.32 : x
  2. Step 2: Convert to fraction form
    779,084.62/1,170,681.85 = 419,521.32/x
  3. Step 3: Cross multiply
    779,084.62x = 1,170,681.85 × 419,521.32
  4. Step 4: Simplify right side
    779,084.62x = 491,125,995,012.04
  5. Step 5: Solve for x
    x = 491,125,995,012.04/779,084.62
  6. Step 6: Final answer
    x = 630,388.51

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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.