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Finding the Fourth Proportional to 609,053.42, 840,300.46 and 354,355.40

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Solution

The fourth proportional to 609,053.42, 840,300.46 and 354,355.40 is: 488,898.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,053.42 : 840,300.46 = 354,355.40 : x
  2. Step 2: Convert to fraction form
    609,053.42/840,300.46 = 354,355.40/x
  3. Step 3: Cross multiply
    609,053.42x = 840,300.46 × 354,355.40
  4. Step 4: Simplify right side
    609,053.42x = 297,765,000,536.09
  5. Step 5: Solve for x
    x = 297,765,000,536.09/609,053.42
  6. Step 6: Final answer
    x = 488,898.01

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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.