Home / 687,584.70-1,031,377.05-477,632.70

Finding the Fourth Proportional to 687,584.70, 1,031,377.05 and 477,632.70

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Solution

The fourth proportional to 687,584.70, 1,031,377.05 and 477,632.70 is: 716,449.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,584.70 : 1,031,377.05 = 477,632.70 : x
  2. Step 2: Convert to fraction form
    687,584.70/1,031,377.05 = 477,632.70/x
  3. Step 3: Cross multiply
    687,584.70x = 1,031,377.05 × 477,632.70
  4. Step 4: Simplify right side
    687,584.70x = 492,619,405,109.54
  5. Step 5: Solve for x
    x = 492,619,405,109.54/687,584.70
  6. Step 6: Final answer
    x = 716,449.05

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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.