Home / 827,953.20-1,241,929.80-778,964.40

Finding the Fourth Proportional to 827,953.20, 1,241,929.80 and 778,964.40

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Solution

The fourth proportional to 827,953.20, 1,241,929.80 and 778,964.40 is: 1,168,446.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,953.20 : 1,241,929.80 = 778,964.40 : x
  2. Step 2: Convert to fraction form
    827,953.20/1,241,929.80 = 778,964.40/x
  3. Step 3: Cross multiply
    827,953.20x = 1,241,929.80 × 778,964.40
  4. Step 4: Simplify right side
    827,953.20x = 967,419,101,499.12
  5. Step 5: Solve for x
    x = 967,419,101,499.12/827,953.20
  6. Step 6: Final answer
    x = 1,168,446.60

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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.