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Finding the Fourth Proportional to 614,785.85, 848,402.79 and 342,854.03

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Solution

The fourth proportional to 614,785.85, 848,402.79 and 342,854.03 is: 473,137.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,785.85 : 848,402.79 = 342,854.03 : x
  2. Step 2: Convert to fraction form
    614,785.85/848,402.79 = 342,854.03/x
  3. Step 3: Cross multiply
    614,785.85x = 848,402.79 × 342,854.03
  4. Step 4: Simplify right side
    614,785.85x = 290,878,315,614.74
  5. Step 5: Solve for x
    x = 290,878,315,614.74/614,785.85
  6. Step 6: Final answer
    x = 473,137.63

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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.