Home / 448,623.65-618,750.61-287,493.69

Finding the Fourth Proportional to 448,623.65, 618,750.61 and 287,493.69

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Solution

The fourth proportional to 448,623.65, 618,750.61 and 287,493.69 is: 396,516.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,623.65 : 618,750.61 = 287,493.69 : x
  2. Step 2: Convert to fraction form
    448,623.65/618,750.61 = 287,493.69/x
  3. Step 3: Cross multiply
    448,623.65x = 618,750.61 × 287,493.69
  4. Step 4: Simplify right side
    448,623.65x = 177,886,896,058.65
  5. Step 5: Solve for x
    x = 177,886,896,058.65/448,623.65
  6. Step 6: Final answer
    x = 396,516.98

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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.