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Finding the Fourth Proportional to 609,064.29, 840,315.48 and 354,366.27

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Solution

The fourth proportional to 609,064.29, 840,315.48 and 354,366.27 is: 488,913.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,064.29 : 840,315.48 = 354,366.27 : x
  2. Step 2: Convert to fraction form
    609,064.29/840,315.48 = 354,366.27/x
  3. Step 3: Cross multiply
    609,064.29x = 840,315.48 × 354,366.27
  4. Step 4: Simplify right side
    609,064.29x = 297,779,462,270.86
  5. Step 5: Solve for x
    x = 297,779,462,270.86/609,064.29
  6. Step 6: Final answer
    x = 488,913.02

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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.