Home / 751,287.20-1,125,061.40-525,590.84

Finding the Fourth Proportional to 751,287.20, 1,125,061.40 and 525,590.84

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Solution

The fourth proportional to 751,287.20, 1,125,061.40 and 525,590.84 is: 787,078.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,287.20 : 1,125,061.40 = 525,590.84 : x
  2. Step 2: Convert to fraction form
    751,287.20/1,125,061.40 = 525,590.84/x
  3. Step 3: Cross multiply
    751,287.20x = 1,125,061.40 × 525,590.84
  4. Step 4: Simplify right side
    751,287.20x = 591,321,970,404.21
  5. Step 5: Solve for x
    x = 591,321,970,404.21/751,287.20
  6. Step 6: Final answer
    x = 787,078.46

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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.