Home / 448,007.28-618,269.40-254,411.08

Finding the Fourth Proportional to 448,007.28, 618,269.40 and 254,411.08

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Solution

The fourth proportional to 448,007.28, 618,269.40 and 254,411.08 is: 351,098.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,007.28 : 618,269.40 = 254,411.08 : x
  2. Step 2: Convert to fraction form
    448,007.28/618,269.40 = 254,411.08/x
  3. Step 3: Cross multiply
    448,007.28x = 618,269.40 × 254,411.08
  4. Step 4: Simplify right side
    448,007.28x = 157,294,585,784.95
  5. Step 5: Solve for x
    x = 157,294,585,784.95/448,007.28
  6. Step 6: Final answer
    x = 351,098.28

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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.