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Finding the Fourth Proportional to 614,003.87, 921,104.22 and 259,070.18

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Solution

The fourth proportional to 614,003.87, 921,104.22 and 259,070.18 is: 388,646.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,003.87 : 921,104.22 = 259,070.18 : x
  2. Step 2: Convert to fraction form
    614,003.87/921,104.22 = 259,070.18/x
  3. Step 3: Cross multiply
    614,003.87x = 921,104.22 × 259,070.18
  4. Step 4: Simplify right side
    614,003.87x = 238,630,636,074.16
  5. Step 5: Solve for x
    x = 238,630,636,074.16/614,003.87
  6. Step 6: Final answer
    x = 388,646.79

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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.