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Finding the Fourth Proportional to 515,467.68, 711,030.96 and 341,037.60

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Solution

The fourth proportional to 515,467.68, 711,030.96 and 341,037.60 is: 470,423.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,467.68 : 711,030.96 = 341,037.60 : x
  2. Step 2: Convert to fraction form
    515,467.68/711,030.96 = 341,037.60/x
  3. Step 3: Cross multiply
    515,467.68x = 711,030.96 × 341,037.60
  4. Step 4: Simplify right side
    515,467.68x = 242,488,292,124.10
  5. Step 5: Solve for x
    x = 242,488,292,124.10/515,467.68
  6. Step 6: Final answer
    x = 470,423.85

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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.