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Finding the Fourth Proportional to 651,959.80, 978,231.30 and 314,870.20

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Solution

The fourth proportional to 651,959.80, 978,231.30 and 314,870.20 is: 472,446.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,959.80 : 978,231.30 = 314,870.20 : x
  2. Step 2: Convert to fraction form
    651,959.80/978,231.30 = 314,870.20/x
  3. Step 3: Cross multiply
    651,959.80x = 978,231.30 × 314,870.20
  4. Step 4: Simplify right side
    651,959.80x = 308,015,885,077.26
  5. Step 5: Solve for x
    x = 308,015,885,077.26/651,959.80
  6. Step 6: Final answer
    x = 472,446.13

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.