Home / 1,191,472.80-1,784,098.80-768,458.40

Finding the Fourth Proportional to 1,191,472.80, 1,784,098.80 and 768,458.40

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Solution

The fourth proportional to 1,191,472.80, 1,784,098.80 and 768,458.40 is: 1,150,681.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,472.80 : 1,784,098.80 = 768,458.40 : x
  2. Step 2: Convert to fraction form
    1,191,472.80/1,784,098.80 = 768,458.40/x
  3. Step 3: Cross multiply
    1,191,472.80x = 1,784,098.80 × 768,458.40
  4. Step 4: Simplify right side
    1,191,472.80x = 1,371,005,709,289.92
  5. Step 5: Solve for x
    x = 1,371,005,709,289.92/1,191,472.80
  6. Step 6: Final answer
    x = 1,150,681.50

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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.