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Finding the Fourth Proportional to 601,389.63, 829,603.02 and 371,873.55

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Solution

The fourth proportional to 601,389.63, 829,603.02 and 371,873.55 is: 512,990.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,389.63 : 829,603.02 = 371,873.55 : x
  2. Step 2: Convert to fraction form
    601,389.63/829,603.02 = 371,873.55/x
  3. Step 3: Cross multiply
    601,389.63x = 829,603.02 × 371,873.55
  4. Step 4: Simplify right side
    601,389.63x = 308,507,420,138.12
  5. Step 5: Solve for x
    x = 308,507,420,138.12/601,389.63
  6. Step 6: Final answer
    x = 512,990.92

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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.