Home / 1,190,404.80-1,785,607.20-1,099,166.40

Finding the Fourth Proportional to 1,190,404.80, 1,785,607.20 and 1,099,166.40

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Solution

The fourth proportional to 1,190,404.80, 1,785,607.20 and 1,099,166.40 is: 1,648,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,404.80 : 1,785,607.20 = 1,099,166.40 : x
  2. Step 2: Convert to fraction form
    1,190,404.80/1,785,607.20 = 1,099,166.40/x
  3. Step 3: Cross multiply
    1,190,404.80x = 1,785,607.20 × 1,099,166.40
  4. Step 4: Simplify right side
    1,190,404.80x = 1,962,679,437,838.08
  5. Step 5: Solve for x
    x = 1,962,679,437,838.08/1,190,404.80
  6. Step 6: Final answer
    x = 1,648,749.60

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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.