Home / 675,093.70-1,012,478.55-390,168.10

Finding the Fourth Proportional to 675,093.70, 1,012,478.55 and 390,168.10

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Solution

The fourth proportional to 675,093.70, 1,012,478.55 and 390,168.10 is: 585,158.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,093.70 : 1,012,478.55 = 390,168.10 : x
  2. Step 2: Convert to fraction form
    675,093.70/1,012,478.55 = 390,168.10/x
  3. Step 3: Cross multiply
    675,093.70x = 1,012,478.55 × 390,168.10
  4. Step 4: Simplify right side
    675,093.70x = 395,036,832,144.26
  5. Step 5: Solve for x
    x = 395,036,832,144.26/675,093.70
  6. Step 6: Final answer
    x = 585,158.52

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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.