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Finding the Fourth Proportional to 978,254.60, 1,465,632.30 and 603,840.20

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Solution

The fourth proportional to 978,254.60, 1,465,632.30 and 603,840.20 is: 904,680.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,254.60 : 1,465,632.30 = 603,840.20 : x
  2. Step 2: Convert to fraction form
    978,254.60/1,465,632.30 = 603,840.20/x
  3. Step 3: Cross multiply
    978,254.60x = 1,465,632.30 × 603,840.20
  4. Step 4: Simplify right side
    978,254.60x = 885,007,701,158.46
  5. Step 5: Solve for x
    x = 885,007,701,158.46/978,254.60
  6. Step 6: Final answer
    x = 904,680.34

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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.