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Finding the Fourth Proportional to 702,854.04, 969,939.12 and 380,564.40

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Solution

The fourth proportional to 702,854.04, 969,939.12 and 380,564.40 is: 525,179.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,854.04 : 969,939.12 = 380,564.40 : x
  2. Step 2: Convert to fraction form
    702,854.04/969,939.12 = 380,564.40/x
  3. Step 3: Cross multiply
    702,854.04x = 969,939.12 × 380,564.40
  4. Step 4: Simplify right side
    702,854.04x = 369,124,299,239.33
  5. Step 5: Solve for x
    x = 369,124,299,239.33/702,854.04
  6. Step 6: Final answer
    x = 525,179.17

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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.