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Finding the Fourth Proportional to 609,364.70, 840,912.96 and 337,426.76

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Solution

The fourth proportional to 609,364.70, 840,912.96 and 337,426.76 is: 465,643.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,364.70 : 840,912.96 = 337,426.76 : x
  2. Step 2: Convert to fraction form
    609,364.70/840,912.96 = 337,426.76/x
  3. Step 3: Cross multiply
    609,364.70x = 840,912.96 × 337,426.76
  4. Step 4: Simplify right side
    609,364.70x = 283,746,535,534.81
  5. Step 5: Solve for x
    x = 283,746,535,534.81/609,364.70
  6. Step 6: Final answer
    x = 465,643.21

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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.