Home / 970,179.86-1,455,593.63-430,361.64

Finding the Fourth Proportional to 970,179.86, 1,455,593.63 and 430,361.64

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Solution

The fourth proportional to 970,179.86, 1,455,593.63 and 430,361.64 is: 645,686.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,179.86 : 1,455,593.63 = 430,361.64 : x
  2. Step 2: Convert to fraction form
    970,179.86/1,455,593.63 = 430,361.64/x
  3. Step 3: Cross multiply
    970,179.86x = 1,455,593.63 × 430,361.64
  4. Step 4: Simplify right side
    970,179.86x = 626,431,659,628.55
  5. Step 5: Solve for x
    x = 626,431,659,628.55/970,179.86
  6. Step 6: Final answer
    x = 645,686.11

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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.