Home / 3,128,006.70-4,688,510.85-1,330,584.30

Finding the Fourth Proportional to 3,128,006.70, 4,688,510.85 and 1,330,584.30

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Solution

The fourth proportional to 3,128,006.70, 4,688,510.85 and 1,330,584.30 is: 1,994,387.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,006.70 : 4,688,510.85 = 1,330,584.30 : x
  2. Step 2: Convert to fraction form
    3,128,006.70/4,688,510.85 = 1,330,584.30/x
  3. Step 3: Cross multiply
    3,128,006.70x = 4,688,510.85 × 1,330,584.30
  4. Step 4: Simplify right side
    3,128,006.70x = 6,238,458,927,389.65
  5. Step 5: Solve for x
    x = 6,238,458,927,389.65/3,128,006.70
  6. Step 6: Final answer
    x = 1,994,387.97

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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.