Home / 820,678.02-1,231,087.50-288,153.24

Finding the Fourth Proportional to 820,678.02, 1,231,087.50 and 288,153.24

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Solution

The fourth proportional to 820,678.02, 1,231,087.50 and 288,153.24 is: 432,254.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,678.02 : 1,231,087.50 = 288,153.24 : x
  2. Step 2: Convert to fraction form
    820,678.02/1,231,087.50 = 288,153.24/x
  3. Step 3: Cross multiply
    820,678.02x = 1,231,087.50 × 288,153.24
  4. Step 4: Simplify right side
    820,678.02x = 354,741,851,848.50
  5. Step 5: Solve for x
    x = 354,741,851,848.50/820,678.02
  6. Step 6: Final answer
    x = 432,254.60

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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.