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Finding the Fourth Proportional to 671,825.28, 927,118.89 and 370,019.28

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Solution

The fourth proportional to 671,825.28, 927,118.89 and 370,019.28 is: 510,626.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,825.28 : 927,118.89 = 370,019.28 : x
  2. Step 2: Convert to fraction form
    671,825.28/927,118.89 = 370,019.28/x
  3. Step 3: Cross multiply
    671,825.28x = 927,118.89 × 370,019.28
  4. Step 4: Simplify right side
    671,825.28x = 343,051,864,152.20
  5. Step 5: Solve for x
    x = 343,051,864,152.20/671,825.28
  6. Step 6: Final answer
    x = 510,626.61

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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.