Home / 3,155,755.86-4,734,428.67-911,878.74

Finding the Fourth Proportional to 3,155,755.86, 4,734,428.67 and 911,878.74

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Solution

The fourth proportional to 3,155,755.86, 4,734,428.67 and 911,878.74 is: 1,368,047.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155,755.86 : 4,734,428.67 = 911,878.74 : x
  2. Step 2: Convert to fraction form
    3,155,755.86/4,734,428.67 = 911,878.74/x
  3. Step 3: Cross multiply
    3,155,755.86x = 4,734,428.67 × 911,878.74
  4. Step 4: Simplify right side
    3,155,755.86x = 4,317,224,850,219.48
  5. Step 5: Solve for x
    x = 4,317,224,850,219.48/3,155,755.86
  6. Step 6: Final answer
    x = 1,368,047.80

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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.