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Finding the Fourth Proportional to 603,799.60, 904,662.60 and 319,068.40

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Solution

The fourth proportional to 603,799.60, 904,662.60 and 319,068.40 is: 478,054.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,799.60 : 904,662.60 = 319,068.40 : x
  2. Step 2: Convert to fraction form
    603,799.60/904,662.60 = 319,068.40/x
  3. Step 3: Cross multiply
    603,799.60x = 904,662.60 × 319,068.40
  4. Step 4: Simplify right side
    603,799.60x = 288,649,248,321.84
  5. Step 5: Solve for x
    x = 288,649,248,321.84/603,799.60
  6. Step 6: Final answer
    x = 478,054.72

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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.