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Finding the Fourth Proportional to 661,034.32, 912,153.18 and 374,493.04

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Solution

The fourth proportional to 661,034.32, 912,153.18 and 374,493.04 is: 516,758.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,034.32 : 912,153.18 = 374,493.04 : x
  2. Step 2: Convert to fraction form
    661,034.32/912,153.18 = 374,493.04/x
  3. Step 3: Cross multiply
    661,034.32x = 912,153.18 × 374,493.04
  4. Step 4: Simplify right side
    661,034.32x = 341,595,017,323.87
  5. Step 5: Solve for x
    x = 341,595,017,323.87/661,034.32
  6. Step 6: Final answer
    x = 516,758.37

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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.