Home / 814,815.60-1,124,502.34-538,693.72

Finding the Fourth Proportional to 814,815.60, 1,124,502.34 and 538,693.72

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Solution

The fourth proportional to 814,815.60, 1,124,502.34 and 538,693.72 is: 743,434.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,815.60 : 1,124,502.34 = 538,693.72 : x
  2. Step 2: Convert to fraction form
    814,815.60/1,124,502.34 = 538,693.72/x
  3. Step 3: Cross multiply
    814,815.60x = 1,124,502.34 × 538,693.72
  4. Step 4: Simplify right side
    814,815.60x = 605,762,348,683.31
  5. Step 5: Solve for x
    x = 605,762,348,683.31/814,815.60
  6. Step 6: Final answer
    x = 743,434.89

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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.