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Finding the Fourth Proportional to 720,030.60, 1,080,045.90 and 440,094.60

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Solution

The fourth proportional to 720,030.60, 1,080,045.90 and 440,094.60 is: 660,141.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,030.60 : 1,080,045.90 = 440,094.60 : x
  2. Step 2: Convert to fraction form
    720,030.60/1,080,045.90 = 440,094.60/x
  3. Step 3: Cross multiply
    720,030.60x = 1,080,045.90 × 440,094.60
  4. Step 4: Simplify right side
    720,030.60x = 475,322,368,342.14
  5. Step 5: Solve for x
    x = 475,322,368,342.14/720,030.60
  6. Step 6: Final answer
    x = 660,141.90

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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.