Home / 740,062.09-1,021,288.67-400,530.25

Finding the Fourth Proportional to 740,062.09, 1,021,288.67 and 400,530.25

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Solution

The fourth proportional to 740,062.09, 1,021,288.67 and 400,530.25 is: 552,733.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,062.09 : 1,021,288.67 = 400,530.25 : x
  2. Step 2: Convert to fraction form
    740,062.09/1,021,288.67 = 400,530.25/x
  3. Step 3: Cross multiply
    740,062.09x = 1,021,288.67 × 400,530.25
  4. Step 4: Simplify right side
    740,062.09x = 409,057,006,317.27
  5. Step 5: Solve for x
    x = 409,057,006,317.27/740,062.09
  6. Step 6: Final answer
    x = 552,733.36

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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.