Home / 1,155,979.18-1,595,572.14-672,638

Finding the Fourth Proportional to 1,155,979.18, 1,595,572.14 and 672,638

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Solution

The fourth proportional to 1,155,979.18, 1,595,572.14 and 672,638 is: 928,427.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,979.18 : 1,595,572.14 = 672,638 : x
  2. Step 2: Convert to fraction form
    1,155,979.18/1,595,572.14 = 672,638/x
  3. Step 3: Cross multiply
    1,155,979.18x = 1,595,572.14 × 672,638
  4. Step 4: Simplify right side
    1,155,979.18x = 1,073,242,453,105.32
  5. Step 5: Solve for x
    x = 1,073,242,453,105.32/1,155,979.18
  6. Step 6: Final answer
    x = 928,427.15

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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.