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Finding the Fourth Proportional to 661,812.26, 913,296.80 and 360,007.46

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Solution

The fourth proportional to 661,812.26, 913,296.80 and 360,007.46 is: 496,808.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,812.26 : 913,296.80 = 360,007.46 : x
  2. Step 2: Convert to fraction form
    661,812.26/913,296.80 = 360,007.46/x
  3. Step 3: Cross multiply
    661,812.26x = 913,296.80 × 360,007.46
  4. Step 4: Simplify right side
    661,812.26x = 328,793,661,194.13
  5. Step 5: Solve for x
    x = 328,793,661,194.13/661,812.26
  6. Step 6: Final answer
    x = 496,808.05

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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.