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Finding the Fourth Proportional to 740,549, 1,021,958.16 and 401,017.52

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Solution

The fourth proportional to 740,549, 1,021,958.16 and 401,017.52 is: 553,404.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,549 : 1,021,958.16 = 401,017.52 : x
  2. Step 2: Convert to fraction form
    740,549/1,021,958.16 = 401,017.52/x
  3. Step 3: Cross multiply
    740,549x = 1,021,958.16 × 401,017.52
  4. Step 4: Simplify right side
    740,549x = 409,823,126,866.96
  5. Step 5: Solve for x
    x = 409,823,126,866.96/740,549
  6. Step 6: Final answer
    x = 553,404.47

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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.