Home / 826,136.64-1,238,705.16-370,644.48

Finding the Fourth Proportional to 826,136.64, 1,238,705.16 and 370,644.48

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Solution

The fourth proportional to 826,136.64, 1,238,705.16 and 370,644.48 is: 555,742.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,136.64 : 1,238,705.16 = 370,644.48 : x
  2. Step 2: Convert to fraction form
    826,136.64/1,238,705.16 = 370,644.48/x
  3. Step 3: Cross multiply
    826,136.64x = 1,238,705.16 × 370,644.48
  4. Step 4: Simplify right side
    826,136.64x = 459,119,229,901.52
  5. Step 5: Solve for x
    x = 459,119,229,901.52/826,136.64
  6. Step 6: Final answer
    x = 555,742.49

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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.