Home / 1,245,681.45-1,868,523.39-347,125.77

Finding the Fourth Proportional to 1,245,681.45, 1,868,523.39 and 347,125.77

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Solution

The fourth proportional to 1,245,681.45, 1,868,523.39 and 347,125.77 is: 520,688.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,681.45 : 1,868,523.39 = 347,125.77 : x
  2. Step 2: Convert to fraction form
    1,245,681.45/1,868,523.39 = 347,125.77/x
  3. Step 3: Cross multiply
    1,245,681.45x = 1,868,523.39 × 347,125.77
  4. Step 4: Simplify right side
    1,245,681.45x = 648,612,620,516.76
  5. Step 5: Solve for x
    x = 648,612,620,516.76/1,245,681.45
  6. Step 6: Final answer
    x = 520,688.99

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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.