Home / 1,118,373.78-1,543,399.50-634,983.90

Finding the Fourth Proportional to 1,118,373.78, 1,543,399.50 and 634,983.90

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Solution

The fourth proportional to 1,118,373.78, 1,543,399.50 and 634,983.90 is: 876,302.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,373.78 : 1,543,399.50 = 634,983.90 : x
  2. Step 2: Convert to fraction form
    1,118,373.78/1,543,399.50 = 634,983.90/x
  3. Step 3: Cross multiply
    1,118,373.78x = 1,543,399.50 × 634,983.90
  4. Step 4: Simplify right side
    1,118,373.78x = 980,033,833,768.05
  5. Step 5: Solve for x
    x = 980,033,833,768.05/1,118,373.78
  6. Step 6: Final answer
    x = 876,302.58

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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.