Home / 768,454.20-1,153,009.35-368,889.30

Finding the Fourth Proportional to 768,454.20, 1,153,009.35 and 368,889.30

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Solution

The fourth proportional to 768,454.20, 1,153,009.35 and 368,889.30 is: 553,491.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,454.20 : 1,153,009.35 = 368,889.30 : x
  2. Step 2: Convert to fraction form
    768,454.20/1,153,009.35 = 368,889.30/x
  3. Step 3: Cross multiply
    768,454.20x = 1,153,009.35 × 368,889.30
  4. Step 4: Simplify right side
    768,454.20x = 425,332,812,014.96
  5. Step 5: Solve for x
    x = 425,332,812,014.96/768,454.20
  6. Step 6: Final answer
    x = 553,491.43

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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.