Home / 1,188,931.16-1,783,668.90-515,124.56

Finding the Fourth Proportional to 1,188,931.16, 1,783,668.90 and 515,124.56

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Solution

The fourth proportional to 1,188,931.16, 1,783,668.90 and 515,124.56 is: 772,804.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,931.16 : 1,783,668.90 = 515,124.56 : x
  2. Step 2: Convert to fraction form
    1,188,931.16/1,783,668.90 = 515,124.56/x
  3. Step 3: Cross multiply
    1,188,931.16x = 1,783,668.90 × 515,124.56
  4. Step 4: Simplify right side
    1,188,931.16x = 918,811,657,298.18
  5. Step 5: Solve for x
    x = 918,811,657,298.18/1,188,931.16
  6. Step 6: Final answer
    x = 772,804.76

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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.