Home / 1,283,739.90-1,925,631.76-485,397.42

Finding the Fourth Proportional to 1,283,739.90, 1,925,631.76 and 485,397.42

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Solution

The fourth proportional to 1,283,739.90, 1,925,631.76 and 485,397.42 is: 728,104.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283,739.90 : 1,925,631.76 = 485,397.42 : x
  2. Step 2: Convert to fraction form
    1,283,739.90/1,925,631.76 = 485,397.42/x
  3. Step 3: Cross multiply
    1,283,739.90x = 1,925,631.76 × 485,397.42
  4. Step 4: Simplify right side
    1,283,739.90x = 934,696,688,174.06
  5. Step 5: Solve for x
    x = 934,696,688,174.06/1,283,739.90
  6. Step 6: Final answer
    x = 728,104.41

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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.