Home / 1,139,933.39-1,573,037.21-630,635.76

Finding the Fourth Proportional to 1,139,933.39, 1,573,037.21 and 630,635.76

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Solution

The fourth proportional to 1,139,933.39, 1,573,037.21 and 630,635.76 is: 870,238.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,933.39 : 1,573,037.21 = 630,635.76 : x
  2. Step 2: Convert to fraction form
    1,139,933.39/1,573,037.21 = 630,635.76/x
  3. Step 3: Cross multiply
    1,139,933.39x = 1,573,037.21 × 630,635.76
  4. Step 4: Simplify right side
    1,139,933.39x = 992,013,518,013.22
  5. Step 5: Solve for x
    x = 992,013,518,013.22/1,139,933.39
  6. Step 6: Final answer
    x = 870,238.15

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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.