Home / 646,162.53-891,689.49-404,578.29

Finding the Fourth Proportional to 646,162.53, 891,689.49 and 404,578.29

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Solution

The fourth proportional to 646,162.53, 891,689.49 and 404,578.29 is: 558,308.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,162.53 : 891,689.49 = 404,578.29 : x
  2. Step 2: Convert to fraction form
    646,162.53/891,689.49 = 404,578.29/x
  3. Step 3: Cross multiply
    646,162.53x = 891,689.49 × 404,578.29
  4. Step 4: Simplify right side
    646,162.53x = 360,758,209,075.17
  5. Step 5: Solve for x
    x = 360,758,209,075.17/646,162.53
  6. Step 6: Final answer
    x = 558,308.77

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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.