Home / 1,078,254.21-1,617,104.52-319,916.28

Finding the Fourth Proportional to 1,078,254.21, 1,617,104.52 and 319,916.28

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Solution

The fourth proportional to 1,078,254.21, 1,617,104.52 and 319,916.28 is: 479,792.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,254.21 : 1,617,104.52 = 319,916.28 : x
  2. Step 2: Convert to fraction form
    1,078,254.21/1,617,104.52 = 319,916.28/x
  3. Step 3: Cross multiply
    1,078,254.21x = 1,617,104.52 × 319,916.28
  4. Step 4: Simplify right side
    1,078,254.21x = 517,338,062,409.59
  5. Step 5: Solve for x
    x = 517,338,062,409.59/1,078,254.21
  6. Step 6: Final answer
    x = 479,792.30

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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.