Home / 959,188.86-1,438,471.74-319,320.72

Finding the Fourth Proportional to 959,188.86, 1,438,471.74 and 319,320.72

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Solution

The fourth proportional to 959,188.86, 1,438,471.74 and 319,320.72 is: 478,877.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,188.86 : 1,438,471.74 = 319,320.72 : x
  2. Step 2: Convert to fraction form
    959,188.86/1,438,471.74 = 319,320.72/x
  3. Step 3: Cross multiply
    959,188.86x = 1,438,471.74 × 319,320.72
  4. Step 4: Simplify right side
    959,188.86x = 459,333,831,716.45
  5. Step 5: Solve for x
    x = 459,333,831,716.45/959,188.86
  6. Step 6: Final answer
    x = 478,877.36

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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.