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Finding the Fourth Proportional to 978,026.10, 1,465,289.55 and 603,611.70

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Solution

The fourth proportional to 978,026.10, 1,465,289.55 and 603,611.70 is: 904,337.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,026.10 : 1,465,289.55 = 603,611.70 : x
  2. Step 2: Convert to fraction form
    978,026.10/1,465,289.55 = 603,611.70/x
  3. Step 3: Cross multiply
    978,026.10x = 1,465,289.55 × 603,611.70
  4. Step 4: Simplify right side
    978,026.10x = 884,465,916,267.74
  5. Step 5: Solve for x
    x = 884,465,916,267.74/978,026.10
  6. Step 6: Final answer
    x = 904,337.74

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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.