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Finding the Fourth Proportional to 659,392.21, 910,010.13 and 369,032.87

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Solution

The fourth proportional to 659,392.21, 910,010.13 and 369,032.87 is: 509,292.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,392.21 : 910,010.13 = 369,032.87 : x
  2. Step 2: Convert to fraction form
    659,392.21/910,010.13 = 369,032.87/x
  3. Step 3: Cross multiply
    659,392.21x = 910,010.13 × 369,032.87
  4. Step 4: Simplify right side
    659,392.21x = 335,823,650,894.13
  5. Step 5: Solve for x
    x = 335,823,650,894.13/659,392.21
  6. Step 6: Final answer
    x = 509,292.72

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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.