Home / 670,615.80-1,005,923.70-513,151.80

Finding the Fourth Proportional to 670,615.80, 1,005,923.70 and 513,151.80

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Solution

The fourth proportional to 670,615.80, 1,005,923.70 and 513,151.80 is: 769,727.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,615.80 : 1,005,923.70 = 513,151.80 : x
  2. Step 2: Convert to fraction form
    670,615.80/1,005,923.70 = 513,151.80/x
  3. Step 3: Cross multiply
    670,615.80x = 1,005,923.70 × 513,151.80
  4. Step 4: Simplify right side
    670,615.80x = 516,191,557,317.66
  5. Step 5: Solve for x
    x = 516,191,557,317.66/670,615.80
  6. Step 6: Final answer
    x = 769,727.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.