Home / 818,239.71-1,129,196.51-450,743.50

Finding the Fourth Proportional to 818,239.71, 1,129,196.51 and 450,743.50

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Solution

The fourth proportional to 818,239.71, 1,129,196.51 and 450,743.50 is: 622,040.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,239.71 : 1,129,196.51 = 450,743.50 : x
  2. Step 2: Convert to fraction form
    818,239.71/1,129,196.51 = 450,743.50/x
  3. Step 3: Cross multiply
    818,239.71x = 1,129,196.51 × 450,743.50
  4. Step 4: Simplify right side
    818,239.71x = 508,977,984,851.47
  5. Step 5: Solve for x
    x = 508,977,984,851.47/818,239.71
  6. Step 6: Final answer
    x = 622,040.19

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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.