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Finding the Fourth Proportional to 723,782.48, 998,864.51 and 417,914.73

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Solution

The fourth proportional to 723,782.48, 998,864.51 and 417,914.73 is: 576,748.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,782.48 : 998,864.51 = 417,914.73 : x
  2. Step 2: Convert to fraction form
    723,782.48/998,864.51 = 417,914.73/x
  3. Step 3: Cross multiply
    723,782.48x = 998,864.51 × 417,914.73
  4. Step 4: Simplify right side
    723,782.48x = 417,440,189,913.66
  5. Step 5: Solve for x
    x = 417,440,189,913.66/723,782.48
  6. Step 6: Final answer
    x = 576,748.13

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1.5x scale

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.