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Finding the Fourth Proportional to 719,307.44, 992,651.48 and 397,010.48

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Solution

The fourth proportional to 719,307.44, 992,651.48 and 397,010.48 is: 547,878.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,307.44 : 992,651.48 = 397,010.48 : x
  2. Step 2: Convert to fraction form
    719,307.44/992,651.48 = 397,010.48/x
  3. Step 3: Cross multiply
    719,307.44x = 992,651.48 × 397,010.48
  4. Step 4: Simplify right side
    719,307.44x = 394,093,040,547.51
  5. Step 5: Solve for x
    x = 394,093,040,547.51/719,307.44
  6. Step 6: Final answer
    x = 547,878.44

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Double scale
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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.