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Finding the Fourth Proportional to 654,966.66, 903,805.65 and 368,431.59

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Solution

The fourth proportional to 654,966.66, 903,805.65 and 368,431.59 is: 508,408.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,966.66 : 903,805.65 = 368,431.59 : x
  2. Step 2: Convert to fraction form
    654,966.66/903,805.65 = 368,431.59/x
  3. Step 3: Cross multiply
    654,966.66x = 903,805.65 × 368,431.59
  4. Step 4: Simplify right side
    654,966.66x = 332,990,552,680.48
  5. Step 5: Solve for x
    x = 332,990,552,680.48/654,966.66
  6. Step 6: Final answer
    x = 508,408.40

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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.