Home / 668,749.56-1,003,200.45-242,486.15

Finding the Fourth Proportional to 668,749.56, 1,003,200.45 and 242,486.15

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Solution

The fourth proportional to 668,749.56, 1,003,200.45 and 242,486.15 is: 363,756.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,749.56 : 1,003,200.45 = 242,486.15 : x
  2. Step 2: Convert to fraction form
    668,749.56/1,003,200.45 = 242,486.15/x
  3. Step 3: Cross multiply
    668,749.56x = 1,003,200.45 × 242,486.15
  4. Step 4: Simplify right side
    668,749.56x = 243,262,209,782.77
  5. Step 5: Solve for x
    x = 243,262,209,782.77/668,749.56
  6. Step 6: Final answer
    x = 363,756.82

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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.