Home / 1,078,495.61-1,488,863.31-670,728.83

Finding the Fourth Proportional to 1,078,495.61, 1,488,863.31 and 670,728.83

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Solution

The fourth proportional to 1,078,495.61, 1,488,863.31 and 670,728.83 is: 925,941.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,495.61 : 1,488,863.31 = 670,728.83 : x
  2. Step 2: Convert to fraction form
    1,078,495.61/1,488,863.31 = 670,728.83/x
  3. Step 3: Cross multiply
    1,078,495.61x = 1,488,863.31 × 670,728.83
  4. Step 4: Simplify right side
    1,078,495.61x = 998,623,545,946.23
  5. Step 5: Solve for x
    x = 998,623,545,946.23/1,078,495.61
  6. Step 6: Final answer
    x = 925,941.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.