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Finding the Fourth Proportional to 758,345.67, 1,046,990.34 and 482,859

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Solution

The fourth proportional to 758,345.67, 1,046,990.34 and 482,859 is: 666,646.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,345.67 : 1,046,990.34 = 482,859 : x
  2. Step 2: Convert to fraction form
    758,345.67/1,046,990.34 = 482,859/x
  3. Step 3: Cross multiply
    758,345.67x = 1,046,990.34 × 482,859
  4. Step 4: Simplify right side
    758,345.67x = 505,548,708,582.06
  5. Step 5: Solve for x
    x = 505,548,708,582.06/758,345.67
  6. Step 6: Final answer
    x = 666,646.79

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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.