Home / 890,033.76-1,335,348.72-291,022.56

Finding the Fourth Proportional to 890,033.76, 1,335,348.72 and 291,022.56

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Solution

The fourth proportional to 890,033.76, 1,335,348.72 and 291,022.56 is: 436,631.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,033.76 : 1,335,348.72 = 291,022.56 : x
  2. Step 2: Convert to fraction form
    890,033.76/1,335,348.72 = 291,022.56/x
  3. Step 3: Cross multiply
    890,033.76x = 1,335,348.72 × 291,022.56
  4. Step 4: Simplify right side
    890,033.76x = 388,616,602,987.12
  5. Step 5: Solve for x
    x = 388,616,602,987.12/890,033.76
  6. Step 6: Final answer
    x = 436,631.31

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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.