Home / 707,999.20-1,060,443.60-427,026.40

Finding the Fourth Proportional to 707,999.20, 1,060,443.60 and 427,026.40

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Solution

The fourth proportional to 707,999.20, 1,060,443.60 and 427,026.40 is: 639,601.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,999.20 : 1,060,443.60 = 427,026.40 : x
  2. Step 2: Convert to fraction form
    707,999.20/1,060,443.60 = 427,026.40/x
  3. Step 3: Cross multiply
    707,999.20x = 1,060,443.60 × 427,026.40
  4. Step 4: Simplify right side
    707,999.20x = 452,837,412,911.04
  5. Step 5: Solve for x
    x = 452,837,412,911.04/707,999.20
  6. Step 6: Final answer
    x = 639,601.59

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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.