Home / 740,028.89-1,021,239.95-400,497.14

Finding the Fourth Proportional to 740,028.89, 1,021,239.95 and 400,497.14

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Solution

The fourth proportional to 740,028.89, 1,021,239.95 and 400,497.14 is: 552,686.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,028.89 : 1,021,239.95 = 400,497.14 : x
  2. Step 2: Convert to fraction form
    740,028.89/1,021,239.95 = 400,497.14/x
  3. Step 3: Cross multiply
    740,028.89x = 1,021,239.95 × 400,497.14
  4. Step 4: Simplify right side
    740,028.89x = 409,003,672,120.06
  5. Step 5: Solve for x
    x = 409,003,672,120.06/740,028.89
  6. Step 6: Final answer
    x = 552,686.09

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1.5x scale

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.