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Finding the Fourth Proportional to 650,720.15, 897,987.56 and 374,976.71

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Solution

The fourth proportional to 650,720.15, 897,987.56 and 374,976.71 is: 517,464.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,720.15 : 897,987.56 = 374,976.71 : x
  2. Step 2: Convert to fraction form
    650,720.15/897,987.56 = 374,976.71/x
  3. Step 3: Cross multiply
    650,720.15x = 897,987.56 × 374,976.71
  4. Step 4: Simplify right side
    650,720.15x = 336,724,417,317.23
  5. Step 5: Solve for x
    x = 336,724,417,317.23/650,720.15
  6. Step 6: Final answer
    x = 517,464.25

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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.