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Finding the Fourth Proportional to 700,231.18, 966,323.01 and 398,425.18

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Solution

The fourth proportional to 700,231.18, 966,323.01 and 398,425.18 is: 549,829.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,231.18 : 966,323.01 = 398,425.18 : x
  2. Step 2: Convert to fraction form
    700,231.18/966,323.01 = 398,425.18/x
  3. Step 3: Cross multiply
    700,231.18x = 966,323.01 × 398,425.18
  4. Step 4: Simplify right side
    700,231.18x = 385,007,419,197.39
  5. Step 5: Solve for x
    x = 385,007,419,197.39/700,231.18
  6. Step 6: Final answer
    x = 549,829.01

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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.