Home / 1,078,951.12-1,618,601.88-405,085.36

Finding the Fourth Proportional to 1,078,951.12, 1,618,601.88 and 405,085.36

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Solution

The fourth proportional to 1,078,951.12, 1,618,601.88 and 405,085.36 is: 607,693.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,951.12 : 1,618,601.88 = 405,085.36 : x
  2. Step 2: Convert to fraction form
    1,078,951.12/1,618,601.88 = 405,085.36/x
  3. Step 3: Cross multiply
    1,078,951.12x = 1,618,601.88 × 405,085.36
  4. Step 4: Simplify right side
    1,078,951.12x = 655,671,925,256.48
  5. Step 5: Solve for x
    x = 655,671,925,256.48/1,078,951.12
  6. Step 6: Final answer
    x = 607,693.82

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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.