Home / 731,751.48-1,009,784.07-405,076.68

Finding the Fourth Proportional to 731,751.48, 1,009,784.07 and 405,076.68

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Solution

The fourth proportional to 731,751.48, 1,009,784.07 and 405,076.68 is: 558,987.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,751.48 : 1,009,784.07 = 405,076.68 : x
  2. Step 2: Convert to fraction form
    731,751.48/1,009,784.07 = 405,076.68/x
  3. Step 3: Cross multiply
    731,751.48x = 1,009,784.07 × 405,076.68
  4. Step 4: Simplify right side
    731,751.48x = 409,039,978,592.49
  5. Step 5: Solve for x
    x = 409,039,978,592.49/731,751.48
  6. Step 6: Final answer
    x = 558,987.57

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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.