Home / 1,120,981.07-1,681,424.55-521,736.11

Finding the Fourth Proportional to 1,120,981.07, 1,681,424.55 and 521,736.11

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Solution

The fourth proportional to 1,120,981.07, 1,681,424.55 and 521,736.11 is: 782,582.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,981.07 : 1,681,424.55 = 521,736.11 : x
  2. Step 2: Convert to fraction form
    1,120,981.07/1,681,424.55 = 521,736.11/x
  3. Step 3: Cross multiply
    1,120,981.07x = 1,681,424.55 × 521,736.11
  4. Step 4: Simplify right side
    1,120,981.07x = 877,259,903,975.50
  5. Step 5: Solve for x
    x = 877,259,903,975.50/1,120,981.07
  6. Step 6: Final answer
    x = 782,582.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.