Home / 971,399.86-1,456,217.70-339,969.22

Finding the Fourth Proportional to 971,399.86, 1,456,217.70 and 339,969.22

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Solution

The fourth proportional to 971,399.86, 1,456,217.70 and 339,969.22 is: 509,645.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,399.86 : 1,456,217.70 = 339,969.22 : x
  2. Step 2: Convert to fraction form
    971,399.86/1,456,217.70 = 339,969.22/x
  3. Step 3: Cross multiply
    971,399.86x = 1,456,217.70 × 339,969.22
  4. Step 4: Simplify right side
    971,399.86x = 495,069,190,703.77
  5. Step 5: Solve for x
    x = 495,069,190,703.77/971,399.86
  6. Step 6: Final answer
    x = 509,645.11

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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.