Home / 877,142.61-1,314,654.39-427,189.23

Finding the Fourth Proportional to 877,142.61, 1,314,654.39 and 427,189.23

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Solution

The fourth proportional to 877,142.61, 1,314,654.39 and 427,189.23 is: 640,267.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,142.61 : 1,314,654.39 = 427,189.23 : x
  2. Step 2: Convert to fraction form
    877,142.61/1,314,654.39 = 427,189.23/x
  3. Step 3: Cross multiply
    877,142.61x = 1,314,654.39 × 427,189.23
  4. Step 4: Simplify right side
    877,142.61x = 561,606,196,580.22
  5. Step 5: Solve for x
    x = 561,606,196,580.22/877,142.61
  6. Step 6: Final answer
    x = 640,267.83

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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.