Home / 1,100,280.20-1,648,865.10-678,302.60

Finding the Fourth Proportional to 1,100,280.20, 1,648,865.10 and 678,302.60

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Solution

The fourth proportional to 1,100,280.20, 1,648,865.10 and 678,302.60 is: 1,016,495.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,280.20 : 1,648,865.10 = 678,302.60 : x
  2. Step 2: Convert to fraction form
    1,100,280.20/1,648,865.10 = 678,302.60/x
  3. Step 3: Cross multiply
    1,100,280.20x = 1,648,865.10 × 678,302.60
  4. Step 4: Simplify right side
    1,100,280.20x = 1,118,429,484,379.26
  5. Step 5: Solve for x
    x = 1,118,429,484,379.26/1,100,280.20
  6. Step 6: Final answer
    x = 1,016,495.15

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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.