Home / 808,545.80-1,212,822.30-209,464.40

Finding the Fourth Proportional to 808,545.80, 1,212,822.30 and 209,464.40

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Solution

The fourth proportional to 808,545.80, 1,212,822.30 and 209,464.40 is: 314,197.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,545.80 : 1,212,822.30 = 209,464.40 : x
  2. Step 2: Convert to fraction form
    808,545.80/1,212,822.30 = 209,464.40/x
  3. Step 3: Cross multiply
    808,545.80x = 1,212,822.30 × 209,464.40
  4. Step 4: Simplify right side
    808,545.80x = 254,043,095,376.12
  5. Step 5: Solve for x
    x = 254,043,095,376.12/808,545.80
  6. Step 6: Final answer
    x = 314,197.53

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1.5x scale

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.