Home / 1,059,129.17-1,587,800.88-459,638.75

Finding the Fourth Proportional to 1,059,129.17, 1,587,800.88 and 459,638.75

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Solution

The fourth proportional to 1,059,129.17, 1,587,800.88 and 459,638.75 is: 689,070.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,059,129.17 : 1,587,800.88 = 459,638.75 : x
  2. Step 2: Convert to fraction form
    1,059,129.17/1,587,800.88 = 459,638.75/x
  3. Step 3: Cross multiply
    1,059,129.17x = 1,587,800.88 × 459,638.75
  4. Step 4: Simplify right side
    1,059,129.17x = 729,814,815,701.60
  5. Step 5: Solve for x
    x = 729,814,815,701.60/1,059,129.17
  6. Step 6: Final answer
    x = 689,070.64

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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.