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Finding the Fourth Proportional to 542,362.62, 748,448.47 and 300,643.10

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Solution

The fourth proportional to 542,362.62, 748,448.47 and 300,643.10 is: 414,880.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,362.62 : 748,448.47 = 300,643.10 : x
  2. Step 2: Convert to fraction form
    542,362.62/748,448.47 = 300,643.10/x
  3. Step 3: Cross multiply
    542,362.62x = 748,448.47 × 300,643.10
  4. Step 4: Simplify right side
    542,362.62x = 225,015,868,211.06
  5. Step 5: Solve for x
    x = 225,015,868,211.06/542,362.62
  6. Step 6: Final answer
    x = 414,880.86

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1.5x scale

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.