Home / 1,539,733.60-2,309,994.42-640,876.60

Finding the Fourth Proportional to 1,539,733.60, 2,309,994.42 and 640,876.60

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Solution

The fourth proportional to 1,539,733.60, 2,309,994.42 and 640,876.60 is: 961,478.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539,733.60 : 2,309,994.42 = 640,876.60 : x
  2. Step 2: Convert to fraction form
    1,539,733.60/2,309,994.42 = 640,876.60/x
  3. Step 3: Cross multiply
    1,539,733.60x = 2,309,994.42 × 640,876.60
  4. Step 4: Simplify right side
    1,539,733.60x = 1,480,421,369,908.57
  5. Step 5: Solve for x
    x = 1,480,421,369,908.57/1,539,733.60
  6. Step 6: Final answer
    x = 961,478.90

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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.