Home / 750,511.78-1,035,862.63-689,986.55

Finding the Fourth Proportional to 750,511.78, 1,035,862.63 and 689,986.55

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Solution

The fourth proportional to 750,511.78, 1,035,862.63 and 689,986.55 is: 952,325.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,511.78 : 1,035,862.63 = 689,986.55 : x
  2. Step 2: Convert to fraction form
    750,511.78/1,035,862.63 = 689,986.55/x
  3. Step 3: Cross multiply
    750,511.78x = 1,035,862.63 × 689,986.55
  4. Step 4: Simplify right side
    750,511.78x = 714,731,283,212.32
  5. Step 5: Solve for x
    x = 714,731,283,212.32/750,511.78
  6. Step 6: Final answer
    x = 952,325.21

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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.