Home / 787,062.80-1,086,308.08-500,527.52

Finding the Fourth Proportional to 787,062.80, 1,086,308.08 and 500,527.52

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Solution

The fourth proportional to 787,062.80, 1,086,308.08 and 500,527.52 is: 690,830.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,062.80 : 1,086,308.08 = 500,527.52 : x
  2. Step 2: Convert to fraction form
    787,062.80/1,086,308.08 = 500,527.52/x
  3. Step 3: Cross multiply
    787,062.80x = 1,086,308.08 × 500,527.52
  4. Step 4: Simplify right side
    787,062.80x = 543,727,089,238.36
  5. Step 5: Solve for x
    x = 543,727,089,238.36/787,062.80
  6. Step 6: Final answer
    x = 690,830.63

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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.