Home / 815,965.60-1,223,946.84-216,926.66

Finding the Fourth Proportional to 815,965.60, 1,223,946.84 and 216,926.66

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Solution

The fourth proportional to 815,965.60, 1,223,946.84 and 216,926.66 is: 325,389.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,965.60 : 1,223,946.84 = 216,926.66 : x
  2. Step 2: Convert to fraction form
    815,965.60/1,223,946.84 = 216,926.66/x
  3. Step 3: Cross multiply
    815,965.60x = 1,223,946.84 × 216,926.66
  4. Step 4: Simplify right side
    815,965.60x = 265,506,700,018.75
  5. Step 5: Solve for x
    x = 265,506,700,018.75/815,965.60
  6. Step 6: Final answer
    x = 325,389.58

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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.