Home / 1,039,411.41-1,559,120.94-319,748.12

Finding the Fourth Proportional to 1,039,411.41, 1,559,120.94 and 319,748.12

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Solution

The fourth proportional to 1,039,411.41, 1,559,120.94 and 319,748.12 is: 479,623.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,411.41 : 1,559,120.94 = 319,748.12 : x
  2. Step 2: Convert to fraction form
    1,039,411.41/1,559,120.94 = 319,748.12/x
  3. Step 3: Cross multiply
    1,039,411.41x = 1,559,120.94 × 319,748.12
  4. Step 4: Simplify right side
    1,039,411.41x = 498,525,989,417.63
  5. Step 5: Solve for x
    x = 498,525,989,417.63/1,039,411.41
  6. Step 6: Final answer
    x = 479,623.36

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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.