Home / 1,039,384.19-1,559,079.89-319,721.03

Finding the Fourth Proportional to 1,039,384.19, 1,559,079.89 and 319,721.03

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Solution

The fourth proportional to 1,039,384.19, 1,559,079.89 and 319,721.03 is: 479,582.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,384.19 : 1,559,079.89 = 319,721.03 : x
  2. Step 2: Convert to fraction form
    1,039,384.19/1,559,079.89 = 319,721.03/x
  3. Step 3: Cross multiply
    1,039,384.19x = 1,559,079.89 × 319,721.03
  4. Step 4: Simplify right side
    1,039,384.19x = 498,470,618,889.08
  5. Step 5: Solve for x
    x = 498,470,618,889.08/1,039,384.19
  6. Step 6: Final answer
    x = 479,582.65

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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.