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Finding the Fourth Proportional to 890,068.62, 1,335,185 and 291,032.84

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Solution

The fourth proportional to 890,068.62, 1,335,185 and 291,032.84 is: 436,576.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,068.62 : 1,335,185 = 291,032.84 : x
  2. Step 2: Convert to fraction form
    890,068.62/1,335,185 = 291,032.84/x
  3. Step 3: Cross multiply
    890,068.62x = 1,335,185 × 291,032.84
  4. Step 4: Simplify right side
    890,068.62x = 388,582,682,475.40
  5. Step 5: Solve for x
    x = 388,582,682,475.40/890,068.62
  6. Step 6: Final answer
    x = 436,576.10

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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.