Home / 777,404.24-1,072,451.31-454,916.51

Finding the Fourth Proportional to 777,404.24, 1,072,451.31 and 454,916.51

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Solution

The fourth proportional to 777,404.24, 1,072,451.31 and 454,916.51 is: 627,570.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,404.24 : 1,072,451.31 = 454,916.51 : x
  2. Step 2: Convert to fraction form
    777,404.24/1,072,451.31 = 454,916.51/x
  3. Step 3: Cross multiply
    777,404.24x = 1,072,451.31 × 454,916.51
  4. Step 4: Simplify right side
    777,404.24x = 487,875,807,090.13
  5. Step 5: Solve for x
    x = 487,875,807,090.13/777,404.24
  6. Step 6: Final answer
    x = 627,570.29

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1.5x scale

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.