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Finding the Fourth Proportional to 450,820.14, 675,156.75 and 260,880.20

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Solution

The fourth proportional to 450,820.14, 675,156.75 and 260,880.20 is: 390,699.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,820.14 : 675,156.75 = 260,880.20 : x
  2. Step 2: Convert to fraction form
    450,820.14/675,156.75 = 260,880.20/x
  3. Step 3: Cross multiply
    450,820.14x = 675,156.75 × 260,880.20
  4. Step 4: Simplify right side
    450,820.14x = 176,135,027,971.35
  5. Step 5: Solve for x
    x = 176,135,027,971.35/450,820.14
  6. Step 6: Final answer
    x = 390,699.11

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1.5x scale

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.