Home / 898,876.88-1,240,442.70-490,978.96

Finding the Fourth Proportional to 898,876.88, 1,240,442.70 and 490,978.96

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Solution

The fourth proportional to 898,876.88, 1,240,442.70 and 490,978.96 is: 677,546.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,876.88 : 1,240,442.70 = 490,978.96 : x
  2. Step 2: Convert to fraction form
    898,876.88/1,240,442.70 = 490,978.96/x
  3. Step 3: Cross multiply
    898,876.88x = 1,240,442.70 × 490,978.96
  4. Step 4: Simplify right side
    898,876.88x = 609,031,266,785.59
  5. Step 5: Solve for x
    x = 609,031,266,785.59/898,876.88
  6. Step 6: Final answer
    x = 677,546.93

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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.