Home / 685,719.28-1,028,646.54-236,381.02

Finding the Fourth Proportional to 685,719.28, 1,028,646.54 and 236,381.02

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Solution

The fourth proportional to 685,719.28, 1,028,646.54 and 236,381.02 is: 354,594.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,719.28 : 1,028,646.54 = 236,381.02 : x
  2. Step 2: Convert to fraction form
    685,719.28/1,028,646.54 = 236,381.02/x
  3. Step 3: Cross multiply
    685,719.28x = 1,028,646.54 × 236,381.02
  4. Step 4: Simplify right side
    685,719.28x = 243,152,518,344.67
  5. Step 5: Solve for x
    x = 243,152,518,344.67/685,719.28
  6. Step 6: Final answer
    x = 354,594.84

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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.