Home / 751,272.50-1,126,407.96-390,556.82

Finding the Fourth Proportional to 751,272.50, 1,126,407.96 and 390,556.82

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Solution

The fourth proportional to 751,272.50, 1,126,407.96 and 390,556.82 is: 585,574.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,272.50 : 1,126,407.96 = 390,556.82 : x
  2. Step 2: Convert to fraction form
    751,272.50/1,126,407.96 = 390,556.82/x
  3. Step 3: Cross multiply
    751,272.50x = 1,126,407.96 × 390,556.82
  4. Step 4: Simplify right side
    751,272.50x = 439,926,305,248.25
  5. Step 5: Solve for x
    x = 439,926,305,248.25/751,272.50
  6. Step 6: Final answer
    x = 585,574.89

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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.