Home / 919,024.60-1,378,537.38-287,987.80

Finding the Fourth Proportional to 919,024.60, 1,378,537.38 and 287,987.80

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Solution

The fourth proportional to 919,024.60, 1,378,537.38 and 287,987.80 is: 431,981.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,024.60 : 1,378,537.38 = 287,987.80 : x
  2. Step 2: Convert to fraction form
    919,024.60/1,378,537.38 = 287,987.80/x
  3. Step 3: Cross multiply
    919,024.60x = 1,378,537.38 × 287,987.80
  4. Step 4: Simplify right side
    919,024.60x = 397,001,947,283.96
  5. Step 5: Solve for x
    x = 397,001,947,283.96/919,024.60
  6. Step 6: Final answer
    x = 431,981.85

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1.5x scale

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.