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Finding the Fourth Proportional to 918,502, 1,377,772 and 334,241.64

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Solution

The fourth proportional to 918,502, 1,377,772 and 334,241.64 is: 501,369.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,502 : 1,377,772 = 334,241.64 : x
  2. Step 2: Convert to fraction form
    918,502/1,377,772 = 334,241.64/x
  3. Step 3: Cross multiply
    918,502x = 1,377,772 × 334,241.64
  4. Step 4: Simplify right side
    918,502x = 460,508,772,826.08
  5. Step 5: Solve for x
    x = 460,508,772,826.08/918,502
  6. Step 6: Final answer
    x = 501,369.37

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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.