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Finding the Fourth Proportional to 488,276.90, 732,415.35 and 299,320.10

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Solution

The fourth proportional to 488,276.90, 732,415.35 and 299,320.10 is: 448,980.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,276.90 : 732,415.35 = 299,320.10 : x
  2. Step 2: Convert to fraction form
    488,276.90/732,415.35 = 299,320.10/x
  3. Step 3: Cross multiply
    488,276.90x = 732,415.35 × 299,320.10
  4. Step 4: Simplify right side
    488,276.90x = 219,226,635,803.54
  5. Step 5: Solve for x
    x = 219,226,635,803.54/488,276.90
  6. Step 6: Final answer
    x = 448,980.15

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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.