Home / 442,946.57-611,053.67-289,917.39

Finding the Fourth Proportional to 442,946.57, 611,053.67 and 289,917.39

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Solution

The fourth proportional to 442,946.57, 611,053.67 and 289,917.39 is: 399,946.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,946.57 : 611,053.67 = 289,917.39 : x
  2. Step 2: Convert to fraction form
    442,946.57/611,053.67 = 289,917.39/x
  3. Step 3: Cross multiply
    442,946.57x = 611,053.67 × 289,917.39
  4. Step 4: Simplify right side
    442,946.57x = 177,155,085,156.32
  5. Step 5: Solve for x
    x = 177,155,085,156.32/442,946.57
  6. Step 6: Final answer
    x = 399,946.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.