Home / 421,608.28-581,656.02-268,619.08

Finding the Fourth Proportional to 421,608.28, 581,656.02 and 268,619.08

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Solution

The fourth proportional to 421,608.28, 581,656.02 and 268,619.08 is: 370,590.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,608.28 : 581,656.02 = 268,619.08 : x
  2. Step 2: Convert to fraction form
    421,608.28/581,656.02 = 268,619.08/x
  3. Step 3: Cross multiply
    421,608.28x = 581,656.02 × 268,619.08
  4. Step 4: Simplify right side
    421,608.28x = 156,243,904,968.86
  5. Step 5: Solve for x
    x = 156,243,904,968.86/421,608.28
  6. Step 6: Final answer
    x = 370,590.22

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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.