Home / 642,043.04-886,035.42-351,670.49

Finding the Fourth Proportional to 642,043.04, 886,035.42 and 351,670.49

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Solution

The fourth proportional to 642,043.04, 886,035.42 and 351,670.49 is: 485,314.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,043.04 : 886,035.42 = 351,670.49 : x
  2. Step 2: Convert to fraction form
    642,043.04/886,035.42 = 351,670.49/x
  3. Step 3: Cross multiply
    642,043.04x = 886,035.42 × 351,670.49
  4. Step 4: Simplify right side
    642,043.04x = 311,592,508,541.83
  5. Step 5: Solve for x
    x = 311,592,508,541.83/642,043.04
  6. Step 6: Final answer
    x = 485,314.05

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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.