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Finding the Fourth Proportional to 978,023.10, 1,465,285.05 and 603,608.70

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Solution

The fourth proportional to 978,023.10, 1,465,285.05 and 603,608.70 is: 904,333.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,023.10 : 1,465,285.05 = 603,608.70 : x
  2. Step 2: Convert to fraction form
    978,023.10/1,465,285.05 = 603,608.70/x
  3. Step 3: Cross multiply
    978,023.10x = 1,465,285.05 × 603,608.70
  4. Step 4: Simplify right side
    978,023.10x = 884,458,804,159.94
  5. Step 5: Solve for x
    x = 884,458,804,159.94/978,023.10
  6. Step 6: Final answer
    x = 904,333.25

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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.