Home / 926,999.20-1,390,498.80-659,310.40

Finding the Fourth Proportional to 926,999.20, 1,390,498.80 and 659,310.40

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Solution

The fourth proportional to 926,999.20, 1,390,498.80 and 659,310.40 is: 988,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,999.20 : 1,390,498.80 = 659,310.40 : x
  2. Step 2: Convert to fraction form
    926,999.20/1,390,498.80 = 659,310.40/x
  3. Step 3: Cross multiply
    926,999.20x = 1,390,498.80 × 659,310.40
  4. Step 4: Simplify right side
    926,999.20x = 916,770,320,027.52
  5. Step 5: Solve for x
    x = 916,770,320,027.52/926,999.20
  6. Step 6: Final answer
    x = 988,965.60

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1.5x scale

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.