Home / 926,902.40-1,389,187.20-821,926.40

Finding the Fourth Proportional to 926,902.40, 1,389,187.20 and 821,926.40

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Solution

The fourth proportional to 926,902.40, 1,389,187.20 and 821,926.40 is: 1,231,855.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,902.40 : 1,389,187.20 = 821,926.40 : x
  2. Step 2: Convert to fraction form
    926,902.40/1,389,187.20 = 821,926.40/x
  3. Step 3: Cross multiply
    926,902.40x = 1,389,187.20 × 821,926.40
  4. Step 4: Simplify right side
    926,902.40x = 1,141,809,634,222.08
  5. Step 5: Solve for x
    x = 1,141,809,634,222.08/926,902.40
  6. Step 6: Final answer
    x = 1,231,855.30

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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.