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Finding the Fourth Proportional to 978,026.60, 1,465,290.30 and 603,612.20

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Solution

The fourth proportional to 978,026.60, 1,465,290.30 and 603,612.20 is: 904,338.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,026.60 : 1,465,290.30 = 603,612.20 : x
  2. Step 2: Convert to fraction form
    978,026.60/1,465,290.30 = 603,612.20/x
  3. Step 3: Cross multiply
    978,026.60x = 1,465,290.30 × 603,612.20
  4. Step 4: Simplify right side
    978,026.60x = 884,467,101,621.66
  5. Step 5: Solve for x
    x = 884,467,101,621.66/978,026.60
  6. Step 6: Final answer
    x = 904,338.49

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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.