Home / 920,339.88-1,270,121.31-552,929.40

Finding the Fourth Proportional to 920,339.88, 1,270,121.31 and 552,929.40

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Solution

The fourth proportional to 920,339.88, 1,270,121.31 and 552,929.40 is: 763,073.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,339.88 : 1,270,121.31 = 552,929.40 : x
  2. Step 2: Convert to fraction form
    920,339.88/1,270,121.31 = 552,929.40/x
  3. Step 3: Cross multiply
    920,339.88x = 1,270,121.31 × 552,929.40
  4. Step 4: Simplify right side
    920,339.88x = 702,287,413,865.51
  5. Step 5: Solve for x
    x = 702,287,413,865.51/920,339.88
  6. Step 6: Final answer
    x = 763,073.98

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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.