Home / 448,424.13-618,475.38-287,294.27

Finding the Fourth Proportional to 448,424.13, 618,475.38 and 287,294.27

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Solution

The fourth proportional to 448,424.13, 618,475.38 and 287,294.27 is: 396,241.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,424.13 : 618,475.38 = 287,294.27 : x
  2. Step 2: Convert to fraction form
    448,424.13/618,475.38 = 287,294.27/x
  3. Step 3: Cross multiply
    448,424.13x = 618,475.38 × 287,294.27
  4. Step 4: Simplify right side
    448,424.13x = 177,684,432,810.07
  5. Step 5: Solve for x
    x = 177,684,432,810.07/448,424.13
  6. Step 6: Final answer
    x = 396,241.91

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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.