Home / 1,989,355.07-2,984,614.89-641,490.57

Finding the Fourth Proportional to 1,989,355.07, 2,984,614.89 and 641,490.57

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Solution

The fourth proportional to 1,989,355.07, 2,984,614.89 and 641,490.57 is: 962,423.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,355.07 : 2,984,614.89 = 641,490.57 : x
  2. Step 2: Convert to fraction form
    1,989,355.07/2,984,614.89 = 641,490.57/x
  3. Step 3: Cross multiply
    1,989,355.07x = 2,984,614.89 × 641,490.57
  4. Step 4: Simplify right side
    1,989,355.07x = 1,914,602,307,016.59
  5. Step 5: Solve for x
    x = 1,914,602,307,016.59/1,989,355.07
  6. Step 6: Final answer
    x = 962,423.62

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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.