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Finding the Fourth Proportional to 879,158.63, 1,318,909.32 and 373,713.77

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Solution

The fourth proportional to 879,158.63, 1,318,909.32 and 373,713.77 is: 560,643.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,158.63 : 1,318,909.32 = 373,713.77 : x
  2. Step 2: Convert to fraction form
    879,158.63/1,318,909.32 = 373,713.77/x
  3. Step 3: Cross multiply
    879,158.63x = 1,318,909.32 × 373,713.77
  4. Step 4: Simplify right side
    879,158.63x = 492,894,567,670.79
  5. Step 5: Solve for x
    x = 492,894,567,670.79/879,158.63
  6. Step 6: Final answer
    x = 560,643.50

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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.