Home / 1,073,189.22-1,480,678.14-643,312.50

Finding the Fourth Proportional to 1,073,189.22, 1,480,678.14 and 643,312.50

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Solution

The fourth proportional to 1,073,189.22, 1,480,678.14 and 643,312.50 is: 887,577.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073,189.22 : 1,480,678.14 = 643,312.50 : x
  2. Step 2: Convert to fraction form
    1,073,189.22/1,480,678.14 = 643,312.50/x
  3. Step 3: Cross multiply
    1,073,189.22x = 1,480,678.14 × 643,312.50
  4. Step 4: Simplify right side
    1,073,189.22x = 952,538,755,938.75
  5. Step 5: Solve for x
    x = 952,538,755,938.75/1,073,189.22
  6. Step 6: Final answer
    x = 887,577.64

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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.