Home / 949,035.33-1,309,178.28-643,007.01

Finding the Fourth Proportional to 949,035.33, 1,309,178.28 and 643,007.01

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Solution

The fourth proportional to 949,035.33, 1,309,178.28 and 643,007.01 is: 887,017.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,035.33 : 1,309,178.28 = 643,007.01 : x
  2. Step 2: Convert to fraction form
    949,035.33/1,309,178.28 = 643,007.01/x
  3. Step 3: Cross multiply
    949,035.33x = 1,309,178.28 × 643,007.01
  4. Step 4: Simplify right side
    949,035.33x = 841,810,811,379.74
  5. Step 5: Solve for x
    x = 841,810,811,379.74/949,035.33
  6. Step 6: Final answer
    x = 887,017.36

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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.