Home / 898,990.52-1,240,644.64-517,017.60

Finding the Fourth Proportional to 898,990.52, 1,240,644.64 and 517,017.60

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Solution

The fourth proportional to 898,990.52, 1,240,644.64 and 517,017.60 is: 713,505.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,990.52 : 1,240,644.64 = 517,017.60 : x
  2. Step 2: Convert to fraction form
    898,990.52/1,240,644.64 = 517,017.60/x
  3. Step 3: Cross multiply
    898,990.52x = 1,240,644.64 × 517,017.60
  4. Step 4: Simplify right side
    898,990.52x = 641,435,114,225.66
  5. Step 5: Solve for x
    x = 641,435,114,225.66/898,990.52
  6. Step 6: Final answer
    x = 713,505.98

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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.