Home / 712,036.80-1,068,448.32-291,607.20

Finding the Fourth Proportional to 712,036.80, 1,068,448.32 and 291,607.20

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Solution

The fourth proportional to 712,036.80, 1,068,448.32 and 291,607.20 is: 437,571.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,036.80 : 1,068,448.32 = 291,607.20 : x
  2. Step 2: Convert to fraction form
    712,036.80/1,068,448.32 = 291,607.20/x
  3. Step 3: Cross multiply
    712,036.80x = 1,068,448.32 × 291,607.20
  4. Step 4: Simplify right side
    712,036.80x = 311,567,222,939.90
  5. Step 5: Solve for x
    x = 311,567,222,939.90/712,036.80
  6. Step 6: Final answer
    x = 437,571.80

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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.