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Finding the Fourth Proportional to 534,883.60, 738,042.60 and 343,853.20

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Solution

The fourth proportional to 534,883.60, 738,042.60 and 343,853.20 is: 474,455.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,883.60 : 738,042.60 = 343,853.20 : x
  2. Step 2: Convert to fraction form
    534,883.60/738,042.60 = 343,853.20/x
  3. Step 3: Cross multiply
    534,883.60x = 738,042.60 × 343,853.20
  4. Step 4: Simplify right side
    534,883.60x = 253,778,309,746.32
  5. Step 5: Solve for x
    x = 253,778,309,746.32/534,883.60
  6. Step 6: Final answer
    x = 474,455.21

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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.