Home / 689,730.95-951,289.49-448,091.36

Finding the Fourth Proportional to 689,730.95, 951,289.49 and 448,091.36

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Solution

The fourth proportional to 689,730.95, 951,289.49 and 448,091.36 is: 618,015.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,730.95 : 951,289.49 = 448,091.36 : x
  2. Step 2: Convert to fraction form
    689,730.95/951,289.49 = 448,091.36/x
  3. Step 3: Cross multiply
    689,730.95x = 951,289.49 × 448,091.36
  4. Step 4: Simplify right side
    689,730.95x = 426,264,599,087.35
  5. Step 5: Solve for x
    x = 426,264,599,087.35/689,730.95
  6. Step 6: Final answer
    x = 618,015.76

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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.