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Finding the Fourth Proportional to 559,619.69, 772,534.46 and 330,099.71

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Solution

The fourth proportional to 559,619.69, 772,534.46 and 330,099.71 is: 455,690.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,619.69 : 772,534.46 = 330,099.71 : x
  2. Step 2: Convert to fraction form
    559,619.69/772,534.46 = 330,099.71/x
  3. Step 3: Cross multiply
    559,619.69x = 772,534.46 × 330,099.71
  4. Step 4: Simplify right side
    559,619.69x = 255,013,398,173.58
  5. Step 5: Solve for x
    x = 255,013,398,173.58/559,619.69
  6. Step 6: Final answer
    x = 455,690.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.