Home / 1,689,017.91-2,331,012.36-963,975.47

Finding the Fourth Proportional to 1,689,017.91, 2,331,012.36 and 963,975.47

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Solution

The fourth proportional to 1,689,017.91, 2,331,012.36 and 963,975.47 is: 1,330,381.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,017.91 : 2,331,012.36 = 963,975.47 : x
  2. Step 2: Convert to fraction form
    1,689,017.91/2,331,012.36 = 963,975.47/x
  3. Step 3: Cross multiply
    1,689,017.91x = 2,331,012.36 × 963,975.47
  4. Step 4: Simplify right side
    1,689,017.91x = 2,247,038,727,266.66
  5. Step 5: Solve for x
    x = 2,247,038,727,266.66/1,689,017.91
  6. Step 6: Final answer
    x = 1,330,381.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.