Home / 589,390.24-813,145.08-385,557.28

Finding the Fourth Proportional to 589,390.24, 813,145.08 and 385,557.28

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Solution

The fourth proportional to 589,390.24, 813,145.08 and 385,557.28 is: 531,929.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,390.24 : 813,145.08 = 385,557.28 : x
  2. Step 2: Convert to fraction form
    589,390.24/813,145.08 = 385,557.28/x
  3. Step 3: Cross multiply
    589,390.24x = 813,145.08 × 385,557.28
  4. Step 4: Simplify right side
    589,390.24x = 313,514,005,290.18
  5. Step 5: Solve for x
    x = 313,514,005,290.18/589,390.24
  6. Step 6: Final answer
    x = 531,929.41

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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.