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Finding the Fourth Proportional to 783,348, 1,081,026.72 and 425,652

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Solution

The fourth proportional to 783,348, 1,081,026.72 and 425,652 is: 587,403.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,348 : 1,081,026.72 = 425,652 : x
  2. Step 2: Convert to fraction form
    783,348/1,081,026.72 = 425,652/x
  3. Step 3: Cross multiply
    783,348x = 1,081,026.72 × 425,652
  4. Step 4: Simplify right side
    783,348x = 460,141,185,421.44
  5. Step 5: Solve for x
    x = 460,141,185,421.44/783,348
  6. Step 6: Final answer
    x = 587,403.28

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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.