Home / 869,130.78-1,201,045.59-653,896.86

Finding the Fourth Proportional to 869,130.78, 1,201,045.59 and 653,896.86

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Solution

The fourth proportional to 869,130.78, 1,201,045.59 and 653,896.86 is: 903,615.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,130.78 : 1,201,045.59 = 653,896.86 : x
  2. Step 2: Convert to fraction form
    869,130.78/1,201,045.59 = 653,896.86/x
  3. Step 3: Cross multiply
    869,130.78x = 1,201,045.59 × 653,896.86
  4. Step 4: Simplify right side
    869,130.78x = 785,359,940,017.85
  5. Step 5: Solve for x
    x = 785,359,940,017.85/869,130.78
  6. Step 6: Final answer
    x = 903,615.38

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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.