Home / 777,322.88-1,072,707.81-450,699.29

Finding the Fourth Proportional to 777,322.88, 1,072,707.81 and 450,699.29

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Solution

The fourth proportional to 777,322.88, 1,072,707.81 and 450,699.29 is: 621,966.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,322.88 : 1,072,707.81 = 450,699.29 : x
  2. Step 2: Convert to fraction form
    777,322.88/1,072,707.81 = 450,699.29/x
  3. Step 3: Cross multiply
    777,322.88x = 1,072,707.81 × 450,699.29
  4. Step 4: Simplify right side
    777,322.88x = 483,468,648,344.46
  5. Step 5: Solve for x
    x = 483,468,648,344.46/777,322.88
  6. Step 6: Final answer
    x = 621,966.32

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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.