Home / 654,979.49-903,798.56-368,493.42

Finding the Fourth Proportional to 654,979.49, 903,798.56 and 368,493.42

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Solution

The fourth proportional to 654,979.49, 903,798.56 and 368,493.42 is: 508,479.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,979.49 : 903,798.56 = 368,493.42 : x
  2. Step 2: Convert to fraction form
    654,979.49/903,798.56 = 368,493.42/x
  3. Step 3: Cross multiply
    654,979.49x = 903,798.56 × 368,493.42
  4. Step 4: Simplify right side
    654,979.49x = 333,043,820,523.01
  5. Step 5: Solve for x
    x = 333,043,820,523.01/654,979.49
  6. Step 6: Final answer
    x = 508,479.77

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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.