Home / 749,219.20-1,123,828.80-300,009.40

Finding the Fourth Proportional to 749,219.20, 1,123,828.80 and 300,009.40

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Solution

The fourth proportional to 749,219.20, 1,123,828.80 and 300,009.40 is: 450,014.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,219.20 : 1,123,828.80 = 300,009.40 : x
  2. Step 2: Convert to fraction form
    749,219.20/1,123,828.80 = 300,009.40/x
  3. Step 3: Cross multiply
    749,219.20x = 1,123,828.80 × 300,009.40
  4. Step 4: Simplify right side
    749,219.20x = 337,159,203,990.72
  5. Step 5: Solve for x
    x = 337,159,203,990.72/749,219.20
  6. Step 6: Final answer
    x = 450,014.10

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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.