Home / 878,628.13-1,317,077.45-513,426.25

Finding the Fourth Proportional to 878,628.13, 1,317,077.45 and 513,426.25

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Solution

The fourth proportional to 878,628.13, 1,317,077.45 and 513,426.25 is: 769,634.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,628.13 : 1,317,077.45 = 513,426.25 : x
  2. Step 2: Convert to fraction form
    878,628.13/1,317,077.45 = 513,426.25/x
  3. Step 3: Cross multiply
    878,628.13x = 1,317,077.45 × 513,426.25
  4. Step 4: Simplify right side
    878,628.13x = 676,222,136,271.98
  5. Step 5: Solve for x
    x = 676,222,136,271.98/878,628.13
  6. Step 6: Final answer
    x = 769,634.06

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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.