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Finding the Fourth Proportional to 672,727.68, 928,360.44 and 370,921.68

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Solution

The fourth proportional to 672,727.68, 928,360.44 and 370,921.68 is: 511,869.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,727.68 : 928,360.44 = 370,921.68 : x
  2. Step 2: Convert to fraction form
    672,727.68/928,360.44 = 370,921.68/x
  3. Step 3: Cross multiply
    672,727.68x = 928,360.44 × 370,921.68
  4. Step 4: Simplify right side
    672,727.68x = 344,349,014,050.34
  5. Step 5: Solve for x
    x = 344,349,014,050.34/672,727.68
  6. Step 6: Final answer
    x = 511,869.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.