Home / 939,830.73-1,407,970.58-728,433.69

Finding the Fourth Proportional to 939,830.73, 1,407,970.58 and 728,433.69

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Solution

The fourth proportional to 939,830.73, 1,407,970.58 and 728,433.69 is: 1,091,274.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,830.73 : 1,407,970.58 = 728,433.69 : x
  2. Step 2: Convert to fraction form
    939,830.73/1,407,970.58 = 728,433.69/x
  3. Step 3: Cross multiply
    939,830.73x = 1,407,970.58 × 728,433.69
  4. Step 4: Simplify right side
    939,830.73x = 1,025,613,201,358.67
  5. Step 5: Solve for x
    x = 1,025,613,201,358.67/939,830.73
  6. Step 6: Final answer
    x = 1,091,274.38

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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.