Home / 1,293,178.50-1,784,458.53-720,271.98

Finding the Fourth Proportional to 1,293,178.50, 1,784,458.53 and 720,271.98

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Solution

The fourth proportional to 1,293,178.50, 1,784,458.53 and 720,271.98 is: 993,904.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,178.50 : 1,784,458.53 = 720,271.98 : x
  2. Step 2: Convert to fraction form
    1,293,178.50/1,784,458.53 = 720,271.98/x
  3. Step 3: Cross multiply
    1,293,178.50x = 1,784,458.53 × 720,271.98
  4. Step 4: Simplify right side
    1,293,178.50x = 1,285,295,478,630.99
  5. Step 5: Solve for x
    x = 1,285,295,478,630.99/1,293,178.50
  6. Step 6: Final answer
    x = 993,904.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.