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Finding the Fourth Proportional to 658,455.95, 908,666.06 and 368,067.45

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Solution

The fourth proportional to 658,455.95, 908,666.06 and 368,067.45 is: 507,931.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,455.95 : 908,666.06 = 368,067.45 : x
  2. Step 2: Convert to fraction form
    658,455.95/908,666.06 = 368,067.45/x
  3. Step 3: Cross multiply
    658,455.95x = 908,666.06 × 368,067.45
  4. Step 4: Simplify right side
    658,455.95x = 334,450,397,765.41
  5. Step 5: Solve for x
    x = 334,450,397,765.41/658,455.95
  6. Step 6: Final answer
    x = 507,931.32

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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.