Home / 749,918.16-1,123,749.72-300,193.20

Finding the Fourth Proportional to 749,918.16, 1,123,749.72 and 300,193.20

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Solution

The fourth proportional to 749,918.16, 1,123,749.72 and 300,193.20 is: 449,838.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,918.16 : 1,123,749.72 = 300,193.20 : x
  2. Step 2: Convert to fraction form
    749,918.16/1,123,749.72 = 300,193.20/x
  3. Step 3: Cross multiply
    749,918.16x = 1,123,749.72 × 300,193.20
  4. Step 4: Simplify right side
    749,918.16x = 337,342,024,445.90
  5. Step 5: Solve for x
    x = 337,342,024,445.90/749,918.16
  6. Step 6: Final answer
    x = 449,838.45

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1.5x scale

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.