Home / 808,632.30-1,212,948.45-209,588.70

Finding the Fourth Proportional to 808,632.30, 1,212,948.45 and 209,588.70

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Solution

The fourth proportional to 808,632.30, 1,212,948.45 and 209,588.70 is: 314,383.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,632.30 : 1,212,948.45 = 209,588.70 : x
  2. Step 2: Convert to fraction form
    808,632.30/1,212,948.45 = 209,588.70/x
  3. Step 3: Cross multiply
    808,632.30x = 1,212,948.45 × 209,588.70
  4. Step 4: Simplify right side
    808,632.30x = 254,220,288,802.52
  5. Step 5: Solve for x
    x = 254,220,288,802.52/808,632.30
  6. Step 6: Final answer
    x = 314,383.05

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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.