Home / 2,688,005.70-4,032,008.55-915,077.70

Finding the Fourth Proportional to 2,688,005.70, 4,032,008.55 and 915,077.70

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Solution

The fourth proportional to 2,688,005.70, 4,032,008.55 and 915,077.70 is: 1,372,616.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,005.70 : 4,032,008.55 = 915,077.70 : x
  2. Step 2: Convert to fraction form
    2,688,005.70/4,032,008.55 = 915,077.70/x
  3. Step 3: Cross multiply
    2,688,005.70x = 4,032,008.55 × 915,077.70
  4. Step 4: Simplify right side
    2,688,005.70x = 3,689,601,110,314.33
  5. Step 5: Solve for x
    x = 3,689,601,110,314.33/2,688,005.70
  6. Step 6: Final answer
    x = 1,372,616.55

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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.