Home / 1,207,310.40-1,809,813.60-448,948.80

Finding the Fourth Proportional to 1,207,310.40, 1,809,813.60 and 448,948.80

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Solution

The fourth proportional to 1,207,310.40, 1,809,813.60 and 448,948.80 is: 672,994.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,310.40 : 1,809,813.60 = 448,948.80 : x
  2. Step 2: Convert to fraction form
    1,207,310.40/1,809,813.60 = 448,948.80/x
  3. Step 3: Cross multiply
    1,207,310.40x = 1,809,813.60 × 448,948.80
  4. Step 4: Simplify right side
    1,207,310.40x = 812,513,643,943.68
  5. Step 5: Solve for x
    x = 812,513,643,943.68/1,207,310.40
  6. Step 6: Final answer
    x = 672,994.82

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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.