Home / 455,929.20-685,060.20-404,607.60

Finding the Fourth Proportional to 455,929.20, 685,060.20 and 404,607.60

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Solution

The fourth proportional to 455,929.20, 685,060.20 and 404,607.60 is: 607,946.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,929.20 : 685,060.20 = 404,607.60 : x
  2. Step 2: Convert to fraction form
    455,929.20/685,060.20 = 404,607.60/x
  3. Step 3: Cross multiply
    455,929.20x = 685,060.20 × 404,607.60
  4. Step 4: Simplify right side
    455,929.20x = 277,180,563,377.52
  5. Step 5: Solve for x
    x = 277,180,563,377.52/455,929.20
  6. Step 6: Final answer
    x = 607,946.50

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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.