Home / 2,688,008.20-4,032,012.30-915,080.20

Finding the Fourth Proportional to 2,688,008.20, 4,032,012.30 and 915,080.20

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Solution

The fourth proportional to 2,688,008.20, 4,032,012.30 and 915,080.20 is: 1,372,620.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,008.20 : 4,032,012.30 = 915,080.20 : x
  2. Step 2: Convert to fraction form
    2,688,008.20/4,032,012.30 = 915,080.20/x
  3. Step 3: Cross multiply
    2,688,008.20x = 4,032,012.30 × 915,080.20
  4. Step 4: Simplify right side
    2,688,008.20x = 3,689,614,621,886.46
  5. Step 5: Solve for x
    x = 3,689,614,621,886.46/2,688,008.20
  6. Step 6: Final answer
    x = 1,372,620.30

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Similar ratio
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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.