Home / 740,987.53-1,022,562.59-401,455.78

Finding the Fourth Proportional to 740,987.53, 1,022,562.59 and 401,455.78

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Solution

The fourth proportional to 740,987.53, 1,022,562.59 and 401,455.78 is: 554,008.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,987.53 : 1,022,562.59 = 401,455.78 : x
  2. Step 2: Convert to fraction form
    740,987.53/1,022,562.59 = 401,455.78/x
  3. Step 3: Cross multiply
    740,987.53x = 1,022,562.59 × 401,455.78
  4. Step 4: Simplify right side
    740,987.53x = 410,513,662,167.27
  5. Step 5: Solve for x
    x = 410,513,662,167.27/740,987.53
  6. Step 6: Final answer
    x = 554,008.87

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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.