Home / 814,430.25-1,123,943.77-492,078.04

Finding the Fourth Proportional to 814,430.25, 1,123,943.77 and 492,078.04

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Solution

The fourth proportional to 814,430.25, 1,123,943.77 and 492,078.04 is: 679,085.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,430.25 : 1,123,943.77 = 492,078.04 : x
  2. Step 2: Convert to fraction form
    814,430.25/1,123,943.77 = 492,078.04/x
  3. Step 3: Cross multiply
    814,430.25x = 1,123,943.77 × 492,078.04
  4. Step 4: Simplify right side
    814,430.25x = 553,068,048,771.29
  5. Step 5: Solve for x
    x = 553,068,048,771.29/814,430.25
  6. Step 6: Final answer
    x = 679,085.84

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1.5x scale

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.