Home / 1,126,266.12-1,553,866.74-642,490.92

Finding the Fourth Proportional to 1,126,266.12, 1,553,866.74 and 642,490.92

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Solution

The fourth proportional to 1,126,266.12, 1,553,866.74 and 642,490.92 is: 886,420.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,266.12 : 1,553,866.74 = 642,490.92 : x
  2. Step 2: Convert to fraction form
    1,126,266.12/1,553,866.74 = 642,490.92/x
  3. Step 3: Cross multiply
    1,126,266.12x = 1,553,866.74 × 642,490.92
  4. Step 4: Simplify right side
    1,126,266.12x = 998,345,271,340.00
  5. Step 5: Solve for x
    x = 998,345,271,340.00/1,126,266.12
  6. Step 6: Final answer
    x = 886,420.41

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.