Home / 1,333,172.52-1,999,955.88-386,420.22

Finding the Fourth Proportional to 1,333,172.52, 1,999,955.88 and 386,420.22

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Solution

The fourth proportional to 1,333,172.52, 1,999,955.88 and 386,420.22 is: 579,687.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,172.52 : 1,999,955.88 = 386,420.22 : x
  2. Step 2: Convert to fraction form
    1,333,172.52/1,999,955.88 = 386,420.22/x
  3. Step 3: Cross multiply
    1,333,172.52x = 1,999,955.88 × 386,420.22
  4. Step 4: Simplify right side
    1,333,172.52x = 772,823,391,139.89
  5. Step 5: Solve for x
    x = 772,823,391,139.89/1,333,172.52
  6. Step 6: Final answer
    x = 579,687.46

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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.