Home / 742,910.40-1,114,365.60-636,622.20

Finding the Fourth Proportional to 742,910.40, 1,114,365.60 and 636,622.20

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Solution

The fourth proportional to 742,910.40, 1,114,365.60 and 636,622.20 is: 954,933.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,910.40 : 1,114,365.60 = 636,622.20 : x
  2. Step 2: Convert to fraction form
    742,910.40/1,114,365.60 = 636,622.20/x
  3. Step 3: Cross multiply
    742,910.40x = 1,114,365.60 × 636,622.20
  4. Step 4: Simplify right side
    742,910.40x = 709,429,879,876.32
  5. Step 5: Solve for x
    x = 709,429,879,876.32/742,910.40
  6. Step 6: Final answer
    x = 954,933.30

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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.