Home / 1,187,484.24-1,638,880.02-664,223.94

Finding the Fourth Proportional to 1,187,484.24, 1,638,880.02 and 664,223.94

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Solution

The fourth proportional to 1,187,484.24, 1,638,880.02 and 664,223.94 is: 916,713.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,484.24 : 1,638,880.02 = 664,223.94 : x
  2. Step 2: Convert to fraction form
    1,187,484.24/1,638,880.02 = 664,223.94/x
  3. Step 3: Cross multiply
    1,187,484.24x = 1,638,880.02 × 664,223.94
  4. Step 4: Simplify right side
    1,187,484.24x = 1,088,583,344,071.68
  5. Step 5: Solve for x
    x = 1,088,583,344,071.68/1,187,484.24
  6. Step 6: Final answer
    x = 916,713.93

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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.