Home / 446,979.12-670,025.82-209,897.40

Finding the Fourth Proportional to 446,979.12, 670,025.82 and 209,897.40

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Solution

The fourth proportional to 446,979.12, 670,025.82 and 209,897.40 is: 314,638.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,979.12 : 670,025.82 = 209,897.40 : x
  2. Step 2: Convert to fraction form
    446,979.12/670,025.82 = 209,897.40/x
  3. Step 3: Cross multiply
    446,979.12x = 670,025.82 × 209,897.40
  4. Step 4: Simplify right side
    446,979.12x = 140,636,677,550.87
  5. Step 5: Solve for x
    x = 140,636,677,550.87/446,979.12
  6. Step 6: Final answer
    x = 314,638.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.