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Finding the Fourth Proportional to 583,917.72, 805,807.62 and 315,645.72

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Solution

The fourth proportional to 583,917.72, 805,807.62 and 315,645.72 is: 435,591.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,917.72 : 805,807.62 = 315,645.72 : x
  2. Step 2: Convert to fraction form
    583,917.72/805,807.62 = 315,645.72/x
  3. Step 3: Cross multiply
    583,917.72x = 805,807.62 × 315,645.72
  4. Step 4: Simplify right side
    583,917.72x = 254,349,726,396.39
  5. Step 5: Solve for x
    x = 254,349,726,396.39/583,917.72
  6. Step 6: Final answer
    x = 435,591.72

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