Home / 845,477.70-1,268,216.55-284,453.70

Finding the Fourth Proportional to 845,477.70, 1,268,216.55 and 284,453.70

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Solution

The fourth proportional to 845,477.70, 1,268,216.55 and 284,453.70 is: 426,680.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,477.70 : 1,268,216.55 = 284,453.70 : x
  2. Step 2: Convert to fraction form
    845,477.70/1,268,216.55 = 284,453.70/x
  3. Step 3: Cross multiply
    845,477.70x = 1,268,216.55 × 284,453.70
  4. Step 4: Simplify right side
    845,477.70x = 360,748,890,048.74
  5. Step 5: Solve for x
    x = 360,748,890,048.74/845,477.70
  6. Step 6: Final answer
    x = 426,680.55

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Double scale
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Similar ratio
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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.