Home / 1,073,167.09-1,480,647.63-643,290.37

Finding the Fourth Proportional to 1,073,167.09, 1,480,647.63 and 643,290.37

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Solution

The fourth proportional to 1,073,167.09, 1,480,647.63 and 643,290.37 is: 887,547.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073,167.09 : 1,480,647.63 = 643,290.37 : x
  2. Step 2: Convert to fraction form
    1,073,167.09/1,480,647.63 = 643,290.37/x
  3. Step 3: Cross multiply
    1,073,167.09x = 1,480,647.63 × 643,290.37
  4. Step 4: Simplify right side
    1,073,167.09x = 952,486,360,453.04
  5. Step 5: Solve for x
    x = 952,486,360,453.04/1,073,167.09
  6. Step 6: Final answer
    x = 887,547.12

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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.