Home / 783,213.40-1,174,820.10-742,778.20

Finding the Fourth Proportional to 783,213.40, 1,174,820.10 and 742,778.20

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Solution

The fourth proportional to 783,213.40, 1,174,820.10 and 742,778.20 is: 1,114,167.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,213.40 : 1,174,820.10 = 742,778.20 : x
  2. Step 2: Convert to fraction form
    783,213.40/1,174,820.10 = 742,778.20/x
  3. Step 3: Cross multiply
    783,213.40x = 1,174,820.10 × 742,778.20
  4. Step 4: Simplify right side
    783,213.40x = 872,630,759,201.82
  5. Step 5: Solve for x
    x = 872,630,759,201.82/783,213.40
  6. Step 6: Final answer
    x = 1,114,167.30

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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.