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Finding the Fourth Proportional to 609,378.52, 913,508 and 209,924.32

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Solution

The fourth proportional to 609,378.52, 913,508 and 209,924.32 is: 314,693.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,378.52 : 913,508 = 209,924.32 : x
  2. Step 2: Convert to fraction form
    609,378.52/913,508 = 209,924.32/x
  3. Step 3: Cross multiply
    609,378.52x = 913,508 × 209,924.32
  4. Step 4: Simplify right side
    609,378.52x = 191,767,545,714.56
  5. Step 5: Solve for x
    x = 191,767,545,714.56/609,378.52
  6. Step 6: Final answer
    x = 314,693.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.