Home / 1,118,376.72-1,543,403.57-634,986.88

Finding the Fourth Proportional to 1,118,376.72, 1,543,403.57 and 634,986.88

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Solution

The fourth proportional to 1,118,376.72, 1,543,403.57 and 634,986.88 is: 876,306.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,376.72 : 1,543,403.57 = 634,986.88 : x
  2. Step 2: Convert to fraction form
    1,118,376.72/1,543,403.57 = 634,986.88/x
  3. Step 3: Cross multiply
    1,118,376.72x = 1,543,403.57 × 634,986.88
  4. Step 4: Simplify right side
    1,118,376.72x = 980,041,010,461.72
  5. Step 5: Solve for x
    x = 980,041,010,461.72/1,118,376.72
  6. Step 6: Final answer
    x = 876,306.70

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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.