Home / 932,315.89-1,285,495.40-638,107.48

Finding the Fourth Proportional to 932,315.89, 1,285,495.40 and 638,107.48

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Solution

The fourth proportional to 932,315.89, 1,285,495.40 and 638,107.48 is: 879,835.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    932,315.89 : 1,285,495.40 = 638,107.48 : x
  2. Step 2: Convert to fraction form
    932,315.89/1,285,495.40 = 638,107.48/x
  3. Step 3: Cross multiply
    932,315.89x = 1,285,495.40 × 638,107.48
  4. Step 4: Simplify right side
    932,315.89x = 820,284,227,055.06
  5. Step 5: Solve for x
    x = 820,284,227,055.06/932,315.89
  6. Step 6: Final answer
    x = 879,835.09

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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.