Home / 1,055,999.60-1,581,925.80-720,076.40

Finding the Fourth Proportional to 1,055,999.60, 1,581,925.80 and 720,076.40

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Solution

The fourth proportional to 1,055,999.60, 1,581,925.80 and 720,076.40 is: 1,078,700.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055,999.60 : 1,581,925.80 = 720,076.40 : x
  2. Step 2: Convert to fraction form
    1,055,999.60/1,581,925.80 = 720,076.40/x
  3. Step 3: Cross multiply
    1,055,999.60x = 1,581,925.80 × 720,076.40
  4. Step 4: Simplify right side
    1,055,999.60x = 1,139,107,435,131.12
  5. Step 5: Solve for x
    x = 1,139,107,435,131.12/1,055,999.60
  6. Step 6: Final answer
    x = 1,078,700.63

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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.