Home / 810,491.60-1,215,737.40-361,427.60

Finding the Fourth Proportional to 810,491.60, 1,215,737.40 and 361,427.60

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Solution

The fourth proportional to 810,491.60, 1,215,737.40 and 361,427.60 is: 542,141.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,491.60 : 1,215,737.40 = 361,427.60 : x
  2. Step 2: Convert to fraction form
    810,491.60/1,215,737.40 = 361,427.60/x
  3. Step 3: Cross multiply
    810,491.60x = 1,215,737.40 × 361,427.60
  4. Step 4: Simplify right side
    810,491.60x = 439,401,050,712.24
  5. Step 5: Solve for x
    x = 439,401,050,712.24/810,491.60
  6. Step 6: Final answer
    x = 542,141.40

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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.