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Finding the Fourth Proportional to 660,980.40, 912,150.52 and 374,555.24

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Solution

The fourth proportional to 660,980.40, 912,150.52 and 374,555.24 is: 516,884.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,980.40 : 912,150.52 = 374,555.24 : x
  2. Step 2: Convert to fraction form
    660,980.40/912,150.52 = 374,555.24/x
  3. Step 3: Cross multiply
    660,980.40x = 912,150.52 × 374,555.24
  4. Step 4: Simplify right side
    660,980.40x = 341,650,756,934.73
  5. Step 5: Solve for x
    x = 341,650,756,934.73/660,980.40
  6. Step 6: Final answer
    x = 516,884.85

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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.