Home / 707,612.20-1,059,863.10-426,639.40

Finding the Fourth Proportional to 707,612.20, 1,059,863.10 and 426,639.40

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Solution

The fourth proportional to 707,612.20, 1,059,863.10 and 426,639.40 is: 639,021.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,612.20 : 1,059,863.10 = 426,639.40 : x
  2. Step 2: Convert to fraction form
    707,612.20/1,059,863.10 = 426,639.40/x
  3. Step 3: Cross multiply
    707,612.20x = 1,059,863.10 × 426,639.40
  4. Step 4: Simplify right side
    707,612.20x = 452,179,357,066.14
  5. Step 5: Solve for x
    x = 452,179,357,066.14/707,612.20
  6. Step 6: Final answer
    x = 639,021.43

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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.