Home / 685,502.28-1,028,430.88-401,432.84

Finding the Fourth Proportional to 685,502.28, 1,028,430.88 and 401,432.84

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Solution

The fourth proportional to 685,502.28, 1,028,430.88 and 401,432.84 is: 602,253.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,502.28 : 1,028,430.88 = 401,432.84 : x
  2. Step 2: Convert to fraction form
    685,502.28/1,028,430.88 = 401,432.84/x
  3. Step 3: Cross multiply
    685,502.28x = 1,028,430.88 × 401,432.84
  4. Step 4: Simplify right side
    685,502.28x = 412,845,928,902.10
  5. Step 5: Solve for x
    x = 412,845,928,902.10/685,502.28
  6. Step 6: Final answer
    x = 602,253.18

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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.