Home / 911,030.69-1,365,046.57-311,664.21

Finding the Fourth Proportional to 911,030.69, 1,365,046.57 and 311,664.21

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Solution

The fourth proportional to 911,030.69, 1,365,046.57 and 311,664.21 is: 466,983.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,030.69 : 1,365,046.57 = 311,664.21 : x
  2. Step 2: Convert to fraction form
    911,030.69/1,365,046.57 = 311,664.21/x
  3. Step 3: Cross multiply
    911,030.69x = 1,365,046.57 × 311,664.21
  4. Step 4: Simplify right side
    911,030.69x = 425,436,154,027.03
  5. Step 5: Solve for x
    x = 425,436,154,027.03/911,030.69
  6. Step 6: Final answer
    x = 466,983.34

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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.