Home / 448,410.13-618,456.06-287,280.17

Finding the Fourth Proportional to 448,410.13, 618,456.06 and 287,280.17

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Solution

The fourth proportional to 448,410.13, 618,456.06 and 287,280.17 is: 396,222.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,410.13 : 618,456.06 = 287,280.17 : x
  2. Step 2: Convert to fraction form
    448,410.13/618,456.06 = 287,280.17/x
  3. Step 3: Cross multiply
    448,410.13x = 618,456.06 × 287,280.17
  4. Step 4: Simplify right side
    448,410.13x = 177,670,161,281.26
  5. Step 5: Solve for x
    x = 177,670,161,281.26/448,410.13
  6. Step 6: Final answer
    x = 396,222.45

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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.