Home / 810,639.60-1,118,687.10-443,117.29

Finding the Fourth Proportional to 810,639.60, 1,118,687.10 and 443,117.29

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Solution

The fourth proportional to 810,639.60, 1,118,687.10 and 443,117.29 is: 611,504.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,639.60 : 1,118,687.10 = 443,117.29 : x
  2. Step 2: Convert to fraction form
    810,639.60/1,118,687.10 = 443,117.29/x
  3. Step 3: Cross multiply
    810,639.60x = 1,118,687.10 × 443,117.29
  4. Step 4: Simplify right side
    810,639.60x = 495,709,596,109.96
  5. Step 5: Solve for x
    x = 495,709,596,109.96/810,639.60
  6. Step 6: Final answer
    x = 611,504.29

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Double scale
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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.