Home / 990,871.02-1,367,408.98-538,162.02

Finding the Fourth Proportional to 990,871.02, 1,367,408.98 and 538,162.02

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Solution

The fourth proportional to 990,871.02, 1,367,408.98 and 538,162.02 is: 742,667.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,871.02 : 1,367,408.98 = 538,162.02 : x
  2. Step 2: Convert to fraction form
    990,871.02/1,367,408.98 = 538,162.02/x
  3. Step 3: Cross multiply
    990,871.02x = 1,367,408.98 × 538,162.02
  4. Step 4: Simplify right side
    990,871.02x = 735,887,578,842.94
  5. Step 5: Solve for x
    x = 735,887,578,842.94/990,871.02
  6. Step 6: Final answer
    x = 742,667.37

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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.