Home / 763,866.88-1,146,500.48-409,281.28

Finding the Fourth Proportional to 763,866.88, 1,146,500.48 and 409,281.28

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Solution

The fourth proportional to 763,866.88, 1,146,500.48 and 409,281.28 is: 614,297.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,866.88 : 1,146,500.48 = 409,281.28 : x
  2. Step 2: Convert to fraction form
    763,866.88/1,146,500.48 = 409,281.28/x
  3. Step 3: Cross multiply
    763,866.88x = 1,146,500.48 × 409,281.28
  4. Step 4: Simplify right side
    763,866.88x = 469,241,183,975.01
  5. Step 5: Solve for x
    x = 469,241,183,975.01/763,866.88
  6. Step 6: Final answer
    x = 614,297.07

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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.