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Finding the Fourth Proportional to 410,051.30, 615,076.95 and 405,904.10

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Solution

The fourth proportional to 410,051.30, 615,076.95 and 405,904.10 is: 608,856.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,051.30 : 615,076.95 = 405,904.10 : x
  2. Step 2: Convert to fraction form
    410,051.30/615,076.95 = 405,904.10/x
  3. Step 3: Cross multiply
    410,051.30x = 615,076.95 × 405,904.10
  4. Step 4: Simplify right side
    410,051.30x = 249,662,255,820.50
  5. Step 5: Solve for x
    x = 249,662,255,820.50/410,051.30
  6. Step 6: Final answer
    x = 608,856.15

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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.