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Finding the Fourth Proportional to 709,881.82, 1,065,347.64 and 260,881

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Solution

The fourth proportional to 709,881.82, 1,065,347.64 and 260,881 is: 391,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,881.82 : 1,065,347.64 = 260,881 : x
  2. Step 2: Convert to fraction form
    709,881.82/1,065,347.64 = 260,881/x
  3. Step 3: Cross multiply
    709,881.82x = 1,065,347.64 × 260,881
  4. Step 4: Simplify right side
    709,881.82x = 277,928,957,670.84
  5. Step 5: Solve for x
    x = 277,928,957,670.84/709,881.82
  6. Step 6: Final answer
    x = 391,514.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.