Home / 711,139.86-1,067,270.24-312,056.10

Finding the Fourth Proportional to 711,139.86, 1,067,270.24 and 312,056.10

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Solution

The fourth proportional to 711,139.86, 1,067,270.24 and 312,056.10 is: 468,330.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,139.86 : 1,067,270.24 = 312,056.10 : x
  2. Step 2: Convert to fraction form
    711,139.86/1,067,270.24 = 312,056.10/x
  3. Step 3: Cross multiply
    711,139.86x = 1,067,270.24 × 312,056.10
  4. Step 4: Simplify right side
    711,139.86x = 333,048,189,520.60
  5. Step 5: Solve for x
    x = 333,048,189,520.60/711,139.86
  6. Step 6: Final answer
    x = 468,330.08

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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.