Home / 740,522.07-1,021,899.87-438,716.07

Finding the Fourth Proportional to 740,522.07, 1,021,899.87 and 438,716.07

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Solution

The fourth proportional to 740,522.07, 1,021,899.87 and 438,716.07 is: 605,415.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,522.07 : 1,021,899.87 = 438,716.07 : x
  2. Step 2: Convert to fraction form
    740,522.07/1,021,899.87 = 438,716.07/x
  3. Step 3: Cross multiply
    740,522.07x = 1,021,899.87 × 438,716.07
  4. Step 4: Simplify right side
    740,522.07x = 448,323,894,899.91
  5. Step 5: Solve for x
    x = 448,323,894,899.91/740,522.07
  6. Step 6: Final answer
    x = 605,415.98

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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.