Home / 1,411,489.20-1,947,821.40-766,894.80

Finding the Fourth Proportional to 1,411,489.20, 1,947,821.40 and 766,894.80

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Solution

The fourth proportional to 1,411,489.20, 1,947,821.40 and 766,894.80 is: 1,058,296.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411,489.20 : 1,947,821.40 = 766,894.80 : x
  2. Step 2: Convert to fraction form
    1,411,489.20/1,947,821.40 = 766,894.80/x
  3. Step 3: Cross multiply
    1,411,489.20x = 1,947,821.40 × 766,894.80
  4. Step 4: Simplify right side
    1,411,489.20x = 1,493,774,102,988.72
  5. Step 5: Solve for x
    x = 1,493,774,102,988.72/1,411,489.20
  6. Step 6: Final answer
    x = 1,058,296.52

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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.