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Finding the Fourth Proportional to 402,479.10, 604,107.45 and 245,015.10

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Solution

The fourth proportional to 402,479.10, 604,107.45 and 245,015.10 is: 367,759.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,479.10 : 604,107.45 = 245,015.10 : x
  2. Step 2: Convert to fraction form
    402,479.10/604,107.45 = 245,015.10/x
  3. Step 3: Cross multiply
    402,479.10x = 604,107.45 × 245,015.10
  4. Step 4: Simplify right side
    402,479.10x = 148,015,447,272.50
  5. Step 5: Solve for x
    x = 148,015,447,272.50/402,479.10
  6. Step 6: Final answer
    x = 367,759.34

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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.