Home / 423,092.20-634,638.30-403,409.20

Finding the Fourth Proportional to 423,092.20, 634,638.30 and 403,409.20

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Solution

The fourth proportional to 423,092.20, 634,638.30 and 403,409.20 is: 605,113.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,092.20 : 634,638.30 = 403,409.20 : x
  2. Step 2: Convert to fraction form
    423,092.20/634,638.30 = 403,409.20/x
  3. Step 3: Cross multiply
    423,092.20x = 634,638.30 × 403,409.20
  4. Step 4: Simplify right side
    423,092.20x = 256,018,928,892.36
  5. Step 5: Solve for x
    x = 256,018,928,892.36/423,092.20
  6. Step 6: Final answer
    x = 605,113.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.