Home / 480,314.64-720,513-143,333.58

Finding the Fourth Proportional to 480,314.64, 720,513 and 143,333.58

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Solution

The fourth proportional to 480,314.64, 720,513 and 143,333.58 is: 215,012.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,314.64 : 720,513 = 143,333.58 : x
  2. Step 2: Convert to fraction form
    480,314.64/720,513 = 143,333.58/x
  3. Step 3: Cross multiply
    480,314.64x = 720,513 × 143,333.58
  4. Step 4: Simplify right side
    480,314.64x = 103,273,707,726.54
  5. Step 5: Solve for x
    x = 103,273,707,726.54/480,314.64
  6. Step 6: Final answer
    x = 215,012.62

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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.