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Finding the Fourth Proportional to 559,112.88, 771,041.52 and 375,765.60

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Solution

The fourth proportional to 559,112.88, 771,041.52 and 375,765.60 is: 518,197.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,112.88 : 771,041.52 = 375,765.60 : x
  2. Step 2: Convert to fraction form
    559,112.88/771,041.52 = 375,765.60/x
  3. Step 3: Cross multiply
    559,112.88x = 771,041.52 × 375,765.60
  4. Step 4: Simplify right side
    559,112.88x = 289,730,879,387.71
  5. Step 5: Solve for x
    x = 289,730,879,387.71/559,112.88
  6. Step 6: Final answer
    x = 518,197.47

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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.