Home / 687,632.40-1,031,448.60-501,008.40

Finding the Fourth Proportional to 687,632.40, 1,031,448.60 and 501,008.40

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Solution

The fourth proportional to 687,632.40, 1,031,448.60 and 501,008.40 is: 751,512.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,632.40 : 1,031,448.60 = 501,008.40 : x
  2. Step 2: Convert to fraction form
    687,632.40/1,031,448.60 = 501,008.40/x
  3. Step 3: Cross multiply
    687,632.40x = 1,031,448.60 × 501,008.40
  4. Step 4: Simplify right side
    687,632.40x = 516,764,412,768.24
  5. Step 5: Solve for x
    x = 516,764,412,768.24/687,632.40
  6. Step 6: Final answer
    x = 751,512.60

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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.