Home / 991,210.56-1,367,877.12-538,501.44

Finding the Fourth Proportional to 991,210.56, 1,367,877.12 and 538,501.44

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Solution

The fourth proportional to 991,210.56, 1,367,877.12 and 538,501.44 is: 743,135.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,210.56 : 1,367,877.12 = 538,501.44 : x
  2. Step 2: Convert to fraction form
    991,210.56/1,367,877.12 = 538,501.44/x
  3. Step 3: Cross multiply
    991,210.56x = 1,367,877.12 × 538,501.44
  4. Step 4: Simplify right side
    991,210.56x = 736,603,798,863.05
  5. Step 5: Solve for x
    x = 736,603,798,863.05/991,210.56
  6. Step 6: Final answer
    x = 743,135.54

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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.