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Finding the Fourth Proportional to 660,583.42, 911,574.61 and 374,105.57

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Solution

The fourth proportional to 660,583.42, 911,574.61 and 374,105.57 is: 516,248.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,583.42 : 911,574.61 = 374,105.57 : x
  2. Step 2: Convert to fraction form
    660,583.42/911,574.61 = 374,105.57/x
  3. Step 3: Cross multiply
    660,583.42x = 911,574.61 × 374,105.57
  4. Step 4: Simplify right side
    660,583.42x = 341,025,133,578.44
  5. Step 5: Solve for x
    x = 341,025,133,578.44/660,583.42
  6. Step 6: Final answer
    x = 516,248.40

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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.