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Finding the Fourth Proportional to 543,981.66, 750,679.85 and 302,258.01

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Solution

The fourth proportional to 543,981.66, 750,679.85 and 302,258.01 is: 417,107.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,981.66 : 750,679.85 = 302,258.01 : x
  2. Step 2: Convert to fraction form
    543,981.66/750,679.85 = 302,258.01/x
  3. Step 3: Cross multiply
    543,981.66x = 750,679.85 × 302,258.01
  4. Step 4: Simplify right side
    543,981.66x = 226,899,001,178.79
  5. Step 5: Solve for x
    x = 226,899,001,178.79/543,981.66
  6. Step 6: Final answer
    x = 417,107.82

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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.