Home / 763,501.20-1,145,719.80-314,437.20

Finding the Fourth Proportional to 763,501.20, 1,145,719.80 and 314,437.20

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Solution

The fourth proportional to 763,501.20, 1,145,719.80 and 314,437.20 is: 471,848.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,501.20 : 1,145,719.80 = 314,437.20 : x
  2. Step 2: Convert to fraction form
    763,501.20/1,145,719.80 = 314,437.20/x
  3. Step 3: Cross multiply
    763,501.20x = 1,145,719.80 × 314,437.20
  4. Step 4: Simplify right side
    763,501.20x = 360,256,925,896.56
  5. Step 5: Solve for x
    x = 360,256,925,896.56/763,501.20
  6. Step 6: Final answer
    x = 471,848.54

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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.