Home / 815,482.89-1,223,266.59-208,276.92

Finding the Fourth Proportional to 815,482.89, 1,223,266.59 and 208,276.92

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Solution

The fourth proportional to 815,482.89, 1,223,266.59 and 208,276.92 is: 312,426.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,482.89 : 1,223,266.59 = 208,276.92 : x
  2. Step 2: Convert to fraction form
    815,482.89/1,223,266.59 = 208,276.92/x
  3. Step 3: Cross multiply
    815,482.89x = 1,223,266.59 × 208,276.92
  4. Step 4: Simplify right side
    815,482.89x = 254,778,197,704.10
  5. Step 5: Solve for x
    x = 254,778,197,704.10/815,482.89
  6. Step 6: Final answer
    x = 312,426.17

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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.