Home / 1,099,511.60-1,649,267.40-389,611.40

Finding the Fourth Proportional to 1,099,511.60, 1,649,267.40 and 389,611.40

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Solution

The fourth proportional to 1,099,511.60, 1,649,267.40 and 389,611.40 is: 584,417.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,511.60 : 1,649,267.40 = 389,611.40 : x
  2. Step 2: Convert to fraction form
    1,099,511.60/1,649,267.40 = 389,611.40/x
  3. Step 3: Cross multiply
    1,099,511.60x = 1,649,267.40 × 389,611.40
  4. Step 4: Simplify right side
    1,099,511.60x = 642,573,380,688.36
  5. Step 5: Solve for x
    x = 642,573,380,688.36/1,099,511.60
  6. Step 6: Final answer
    x = 584,417.10

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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.