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Finding the Fourth Proportional to 609,047.04, 840,291.69 and 354,349.02

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Solution

The fourth proportional to 609,047.04, 840,291.69 and 354,349.02 is: 488,889.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,047.04 : 840,291.69 = 354,349.02 : x
  2. Step 2: Convert to fraction form
    609,047.04/840,291.69 = 354,349.02/x
  3. Step 3: Cross multiply
    609,047.04x = 840,291.69 × 354,349.02
  4. Step 4: Simplify right side
    609,047.04x = 297,756,536,865.64
  5. Step 5: Solve for x
    x = 297,756,536,865.64/609,047.04
  6. Step 6: Final answer
    x = 488,889.23

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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.