Home / 901,039.92-1,243,438.40-487,576.72

Finding the Fourth Proportional to 901,039.92, 1,243,438.40 and 487,576.72

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Solution

The fourth proportional to 901,039.92, 1,243,438.40 and 487,576.72 is: 672,857.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,039.92 : 1,243,438.40 = 487,576.72 : x
  2. Step 2: Convert to fraction form
    901,039.92/1,243,438.40 = 487,576.72/x
  3. Step 3: Cross multiply
    901,039.92x = 1,243,438.40 × 487,576.72
  4. Step 4: Simplify right side
    901,039.92x = 606,271,616,594.05
  5. Step 5: Solve for x
    x = 606,271,616,594.05/901,039.92
  6. Step 6: Final answer
    x = 672,857.66

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Double scale
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1.5x scale

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.