Home / 1,029,405.45-1,544,714.78-430,320.45

Finding the Fourth Proportional to 1,029,405.45, 1,544,714.78 and 430,320.45

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Solution

The fourth proportional to 1,029,405.45, 1,544,714.78 and 430,320.45 is: 645,734.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,405.45 : 1,544,714.78 = 430,320.45 : x
  2. Step 2: Convert to fraction form
    1,029,405.45/1,544,714.78 = 430,320.45/x
  3. Step 3: Cross multiply
    1,029,405.45x = 1,544,714.78 × 430,320.45
  4. Step 4: Simplify right side
    1,029,405.45x = 664,722,357,099.65
  5. Step 5: Solve for x
    x = 664,722,357,099.65/1,029,405.45
  6. Step 6: Final answer
    x = 645,734.25

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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.