Home / 498,946.43-748,443.73-139,116.58

Finding the Fourth Proportional to 498,946.43, 748,443.73 and 139,116.58

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Solution

The fourth proportional to 498,946.43, 748,443.73 and 139,116.58 is: 208,681.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,946.43 : 748,443.73 = 139,116.58 : x
  2. Step 2: Convert to fraction form
    498,946.43/748,443.73 = 139,116.58/x
  3. Step 3: Cross multiply
    498,946.43x = 748,443.73 × 139,116.58
  4. Step 4: Simplify right side
    498,946.43x = 104,120,929,821.14
  5. Step 5: Solve for x
    x = 104,120,929,821.14/498,946.43
  6. Step 6: Final answer
    x = 208,681.58

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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.