Home / 990,359.86-1,485,753.02-307,232.88

Finding the Fourth Proportional to 990,359.86, 1,485,753.02 and 307,232.88

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Solution

The fourth proportional to 990,359.86, 1,485,753.02 and 307,232.88 is: 460,915.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,359.86 : 1,485,753.02 = 307,232.88 : x
  2. Step 2: Convert to fraction form
    990,359.86/1,485,753.02 = 307,232.88/x
  3. Step 3: Cross multiply
    990,359.86x = 1,485,753.02 × 307,232.88
  4. Step 4: Simplify right side
    990,359.86x = 456,472,179,303.30
  5. Step 5: Solve for x
    x = 456,472,179,303.30/990,359.86
  6. Step 6: Final answer
    x = 460,915.47

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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.