Home / 680,533.48-1,020,535.26-281,238.76

Finding the Fourth Proportional to 680,533.48, 1,020,535.26 and 281,238.76

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Solution

The fourth proportional to 680,533.48, 1,020,535.26 and 281,238.76 is: 421,748.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,533.48 : 1,020,535.26 = 281,238.76 : x
  2. Step 2: Convert to fraction form
    680,533.48/1,020,535.26 = 281,238.76/x
  3. Step 3: Cross multiply
    680,533.48x = 1,020,535.26 × 281,238.76
  4. Step 4: Simplify right side
    680,533.48x = 287,014,071,058.68
  5. Step 5: Solve for x
    x = 287,014,071,058.68/680,533.48
  6. Step 6: Final answer
    x = 421,748.64

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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.