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Finding the Fourth Proportional to 660,942.64, 912,103.88 and 374,518.52

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Solution

The fourth proportional to 660,942.64, 912,103.88 and 374,518.52 is: 516,837.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,942.64 : 912,103.88 = 374,518.52 : x
  2. Step 2: Convert to fraction form
    660,942.64/912,103.88 = 374,518.52/x
  3. Step 3: Cross multiply
    660,942.64x = 912,103.88 × 374,518.52
  4. Step 4: Simplify right side
    660,942.64x = 341,599,795,223.86
  5. Step 5: Solve for x
    x = 341,599,795,223.86/660,942.64
  6. Step 6: Final answer
    x = 516,837.28

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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.