Home / 1,260,908.20-1,891,362.30-788,127.40

Finding the Fourth Proportional to 1,260,908.20, 1,891,362.30 and 788,127.40

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Solution

The fourth proportional to 1,260,908.20, 1,891,362.30 and 788,127.40 is: 1,182,191.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,908.20 : 1,891,362.30 = 788,127.40 : x
  2. Step 2: Convert to fraction form
    1,260,908.20/1,891,362.30 = 788,127.40/x
  3. Step 3: Cross multiply
    1,260,908.20x = 1,891,362.30 × 788,127.40
  4. Step 4: Simplify right side
    1,260,908.20x = 1,490,634,451,957.02
  5. Step 5: Solve for x
    x = 1,490,634,451,957.02/1,260,908.20
  6. Step 6: Final answer
    x = 1,182,191.10

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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.