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Finding the Fourth Proportional to 487,849.84, 673,210.64 and 270,066.56

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Solution

The fourth proportional to 487,849.84, 673,210.64 and 270,066.56 is: 372,679.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,849.84 : 673,210.64 = 270,066.56 : x
  2. Step 2: Convert to fraction form
    487,849.84/673,210.64 = 270,066.56/x
  3. Step 3: Cross multiply
    487,849.84x = 673,210.64 × 270,066.56
  4. Step 4: Simplify right side
    487,849.84x = 181,811,679,009.31
  5. Step 5: Solve for x
    x = 181,811,679,009.31/487,849.84
  6. Step 6: Final answer
    x = 372,679.59

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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.