Home / 875,664.42-1,313,730.63-314,703.78

Finding the Fourth Proportional to 875,664.42, 1,313,730.63 and 314,703.78

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Solution

The fourth proportional to 875,664.42, 1,313,730.63 and 314,703.78 is: 472,139.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,664.42 : 1,313,730.63 = 314,703.78 : x
  2. Step 2: Convert to fraction form
    875,664.42/1,313,730.63 = 314,703.78/x
  3. Step 3: Cross multiply
    875,664.42x = 1,313,730.63 × 314,703.78
  4. Step 4: Simplify right side
    875,664.42x = 413,435,995,162.78
  5. Step 5: Solve for x
    x = 413,435,995,162.78/875,664.42
  6. Step 6: Final answer
    x = 472,139.77

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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.