Home / 672,971.49-1,009,454.00-639,333.81

Finding the Fourth Proportional to 672,971.49, 1,009,454.00 and 639,333.81

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Solution

The fourth proportional to 672,971.49, 1,009,454.00 and 639,333.81 is: 958,997.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,971.49 : 1,009,454.00 = 639,333.81 : x
  2. Step 2: Convert to fraction form
    672,971.49/1,009,454.00 = 639,333.81/x
  3. Step 3: Cross multiply
    672,971.49x = 1,009,454.00 × 639,333.81
  4. Step 4: Simplify right side
    672,971.49x = 645,378,068,643.07
  5. Step 5: Solve for x
    x = 645,378,068,643.07/672,971.49
  6. Step 6: Final answer
    x = 958,997.64

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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.