Home / 740,513.07-1,021,887.45-438,707.07

Finding the Fourth Proportional to 740,513.07, 1,021,887.45 and 438,707.07

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Solution

The fourth proportional to 740,513.07, 1,021,887.45 and 438,707.07 is: 605,403.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,513.07 : 1,021,887.45 = 438,707.07 : x
  2. Step 2: Convert to fraction form
    740,513.07/1,021,887.45 = 438,707.07/x
  3. Step 3: Cross multiply
    740,513.07x = 1,021,887.45 × 438,707.07
  4. Step 4: Simplify right side
    740,513.07x = 448,309,249,059.27
  5. Step 5: Solve for x
    x = 448,309,249,059.27/740,513.07
  6. Step 6: Final answer
    x = 605,403.56

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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.