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Finding the Fourth Proportional to 604,597.80, 907,479.90 and 305,416.20

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Solution

The fourth proportional to 604,597.80, 907,479.90 and 305,416.20 is: 458,418.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,597.80 : 907,479.90 = 305,416.20 : x
  2. Step 2: Convert to fraction form
    604,597.80/907,479.90 = 305,416.20/x
  3. Step 3: Cross multiply
    604,597.80x = 907,479.90 × 305,416.20
  4. Step 4: Simplify right side
    604,597.80x = 277,159,062,634.38
  5. Step 5: Solve for x
    x = 277,159,062,634.38/604,597.80
  6. Step 6: Final answer
    x = 458,418.91

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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.