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Finding the Fourth Proportional to 602,620.04, 904,493.81 and 318,521.45

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Solution

The fourth proportional to 602,620.04, 904,493.81 and 318,521.45 is: 478,080.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,620.04 : 904,493.81 = 318,521.45 : x
  2. Step 2: Convert to fraction form
    602,620.04/904,493.81 = 318,521.45/x
  3. Step 3: Cross multiply
    602,620.04x = 904,493.81 × 318,521.45
  4. Step 4: Simplify right side
    602,620.04x = 288,100,676,151.06
  5. Step 5: Solve for x
    x = 288,100,676,151.06/602,620.04
  6. Step 6: Final answer
    x = 478,080.15

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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.