Home / 751,001.76-1,036,342.80-428,699.04

Finding the Fourth Proportional to 751,001.76, 1,036,342.80 and 428,699.04

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Solution

The fourth proportional to 751,001.76, 1,036,342.80 and 428,699.04 is: 591,582.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,001.76 : 1,036,342.80 = 428,699.04 : x
  2. Step 2: Convert to fraction form
    751,001.76/1,036,342.80 = 428,699.04/x
  3. Step 3: Cross multiply
    751,001.76x = 1,036,342.80 × 428,699.04
  4. Step 4: Simplify right side
    751,001.76x = 444,279,163,470.91
  5. Step 5: Solve for x
    x = 444,279,163,470.91/751,001.76
  6. Step 6: Final answer
    x = 591,582.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.