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Finding the Fourth Proportional to 918,501, 1,377,770.50 and 334,240.64

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Solution

The fourth proportional to 918,501, 1,377,770.50 and 334,240.64 is: 501,367.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,501 : 1,377,770.50 = 334,240.64 : x
  2. Step 2: Convert to fraction form
    918,501/1,377,770.50 = 334,240.64/x
  3. Step 3: Cross multiply
    918,501x = 1,377,770.50 × 334,240.64
  4. Step 4: Simplify right side
    918,501x = 460,506,893,693.12
  5. Step 5: Solve for x
    x = 460,506,893,693.12/918,501
  6. Step 6: Final answer
    x = 501,367.87

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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.