Home / 1,039,406.18-1,559,113.10-319,742.90

Finding the Fourth Proportional to 1,039,406.18, 1,559,113.10 and 319,742.90

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Solution

The fourth proportional to 1,039,406.18, 1,559,113.10 and 319,742.90 is: 479,615.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,406.18 : 1,559,113.10 = 319,742.90 : x
  2. Step 2: Convert to fraction form
    1,039,406.18/1,559,113.10 = 319,742.90/x
  3. Step 3: Cross multiply
    1,039,406.18x = 1,559,113.10 × 319,742.90
  4. Step 4: Simplify right side
    1,039,406.18x = 498,515,336,153.64
  5. Step 5: Solve for x
    x = 498,515,336,153.64/1,039,406.18
  6. Step 6: Final answer
    x = 479,615.52

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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.