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Finding the Fourth Proportional to 911,045.76, 1,366,428.48 and 303,844.74

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Solution

The fourth proportional to 911,045.76, 1,366,428.48 and 303,844.74 is: 455,720.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,045.76 : 1,366,428.48 = 303,844.74 : x
  2. Step 2: Convert to fraction form
    911,045.76/1,366,428.48 = 303,844.74/x
  3. Step 3: Cross multiply
    911,045.76x = 1,366,428.48 × 303,844.74
  4. Step 4: Simplify right side
    911,045.76x = 415,182,106,234.20
  5. Step 5: Solve for x
    x = 415,182,106,234.20/911,045.76
  6. Step 6: Final answer
    x = 455,720.36

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1.5x scale

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.