Home / 685,412.04-1,028,364.03-306,301.02

Finding the Fourth Proportional to 685,412.04, 1,028,364.03 and 306,301.02

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Solution

The fourth proportional to 685,412.04, 1,028,364.03 and 306,301.02 is: 459,561.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,412.04 : 1,028,364.03 = 306,301.02 : x
  2. Step 2: Convert to fraction form
    685,412.04/1,028,364.03 = 306,301.02/x
  3. Step 3: Cross multiply
    685,412.04x = 1,028,364.03 × 306,301.02
  4. Step 4: Simplify right side
    685,412.04x = 314,988,951,320.31
  5. Step 5: Solve for x
    x = 314,988,951,320.31/685,412.04
  6. Step 6: Final answer
    x = 459,561.45

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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.