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Finding the Fourth Proportional to 609,064.92, 840,490.63 and 350,942.38

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Solution

The fourth proportional to 609,064.92, 840,490.63 and 350,942.38 is: 484,289.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,064.92 : 840,490.63 = 350,942.38 : x
  2. Step 2: Convert to fraction form
    609,064.92/840,490.63 = 350,942.38/x
  3. Step 3: Cross multiply
    609,064.92x = 840,490.63 × 350,942.38
  4. Step 4: Simplify right side
    609,064.92x = 294,963,779,081.32
  5. Step 5: Solve for x
    x = 294,963,779,081.32/609,064.92
  6. Step 6: Final answer
    x = 484,289.56

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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.