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Finding the Fourth Proportional to 1,983,359.95, 2,973,295.08 and 786,122.64

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Solution

The fourth proportional to 1,983,359.95, 2,973,295.08 and 786,122.64 is: 1,178,492.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983,359.95 : 2,973,295.08 = 786,122.64 : x
  2. Step 2: Convert to fraction form
    1,983,359.95/2,973,295.08 = 786,122.64/x
  3. Step 3: Cross multiply
    1,983,359.95x = 2,973,295.08 × 786,122.64
  4. Step 4: Simplify right side
    1,983,359.95x = 2,337,374,577,788.61
  5. Step 5: Solve for x
    x = 2,337,374,577,788.61/1,983,359.95
  6. Step 6: Final answer
    x = 1,178,492.38

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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.