Home / 751,009.84-1,126,514.48-498,782.78

Finding the Fourth Proportional to 751,009.84, 1,126,514.48 and 498,782.78

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Solution

The fourth proportional to 751,009.84, 1,126,514.48 and 498,782.78 is: 748,173.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,009.84 : 1,126,514.48 = 498,782.78 : x
  2. Step 2: Convert to fraction form
    751,009.84/1,126,514.48 = 498,782.78/x
  3. Step 3: Cross multiply
    751,009.84x = 1,126,514.48 × 498,782.78
  4. Step 4: Simplify right side
    751,009.84x = 561,886,024,044.65
  5. Step 5: Solve for x
    x = 561,886,024,044.65/751,009.84
  6. Step 6: Final answer
    x = 748,173.98

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Double scale
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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.