Home / 898,443.02-1,239,960.10-511,352.56

Finding the Fourth Proportional to 898,443.02, 1,239,960.10 and 511,352.56

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Solution

The fourth proportional to 898,443.02, 1,239,960.10 and 511,352.56 is: 705,728.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,443.02 : 1,239,960.10 = 511,352.56 : x
  2. Step 2: Convert to fraction form
    898,443.02/1,239,960.10 = 511,352.56/x
  3. Step 3: Cross multiply
    898,443.02x = 1,239,960.10 × 511,352.56
  4. Step 4: Simplify right side
    898,443.02x = 634,056,771,432.86
  5. Step 5: Solve for x
    x = 634,056,771,432.86/898,443.02
  6. Step 6: Final answer
    x = 705,728.42

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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.