Home / 869,148.80-1,303,723.20-308,110.40

Finding the Fourth Proportional to 869,148.80, 1,303,723.20 and 308,110.40

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Solution

The fourth proportional to 869,148.80, 1,303,723.20 and 308,110.40 is: 462,165.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,148.80 : 1,303,723.20 = 308,110.40 : x
  2. Step 2: Convert to fraction form
    869,148.80/1,303,723.20 = 308,110.40/x
  3. Step 3: Cross multiply
    869,148.80x = 1,303,723.20 × 308,110.40
  4. Step 4: Simplify right side
    869,148.80x = 401,690,676,641.28
  5. Step 5: Solve for x
    x = 401,690,676,641.28/869,148.80
  6. Step 6: Final answer
    x = 462,165.60

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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.