Home / 729,133.30-1,006,127.58-402,440.30

Finding the Fourth Proportional to 729,133.30, 1,006,127.58 and 402,440.30

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Solution

The fourth proportional to 729,133.30, 1,006,127.58 and 402,440.30 is: 555,325.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,133.30 : 1,006,127.58 = 402,440.30 : x
  2. Step 2: Convert to fraction form
    729,133.30/1,006,127.58 = 402,440.30/x
  3. Step 3: Cross multiply
    729,133.30x = 1,006,127.58 × 402,440.30
  4. Step 4: Simplify right side
    729,133.30x = 404,906,285,133.47
  5. Step 5: Solve for x
    x = 404,906,285,133.47/729,133.30
  6. Step 6: Final answer
    x = 555,325.46

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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.