Home / 706,059.20-1,059,088.80-647,998.40

Finding the Fourth Proportional to 706,059.20, 1,059,088.80 and 647,998.40

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Solution

The fourth proportional to 706,059.20, 1,059,088.80 and 647,998.40 is: 971,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,059.20 : 1,059,088.80 = 647,998.40 : x
  2. Step 2: Convert to fraction form
    706,059.20/1,059,088.80 = 647,998.40/x
  3. Step 3: Cross multiply
    706,059.20x = 1,059,088.80 × 647,998.40
  4. Step 4: Simplify right side
    706,059.20x = 686,287,847,857.92
  5. Step 5: Solve for x
    x = 686,287,847,857.92/706,059.20
  6. Step 6: Final answer
    x = 971,997.60

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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.