Home / 874,300.14-1,206,501.75-487,106.46

Finding the Fourth Proportional to 874,300.14, 1,206,501.75 and 487,106.46

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Solution

The fourth proportional to 874,300.14, 1,206,501.75 and 487,106.46 is: 672,188.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,300.14 : 1,206,501.75 = 487,106.46 : x
  2. Step 2: Convert to fraction form
    874,300.14/1,206,501.75 = 487,106.46/x
  3. Step 3: Cross multiply
    874,300.14x = 1,206,501.75 × 487,106.46
  4. Step 4: Simplify right side
    874,300.14x = 587,694,796,426.31
  5. Step 5: Solve for x
    x = 587,694,796,426.31/874,300.14
  6. Step 6: Final answer
    x = 672,188.84

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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.