Home / 1,099,516.10-1,649,274.15-389,615.90

Finding the Fourth Proportional to 1,099,516.10, 1,649,274.15 and 389,615.90

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Solution

The fourth proportional to 1,099,516.10, 1,649,274.15 and 389,615.90 is: 584,423.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,516.10 : 1,649,274.15 = 389,615.90 : x
  2. Step 2: Convert to fraction form
    1,099,516.10/1,649,274.15 = 389,615.90/x
  3. Step 3: Cross multiply
    1,099,516.10x = 1,649,274.15 × 389,615.90
  4. Step 4: Simplify right side
    1,099,516.10x = 642,583,432,298.99
  5. Step 5: Solve for x
    x = 642,583,432,298.99/1,099,516.10
  6. Step 6: Final answer
    x = 584,423.85

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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.