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Finding the Fourth Proportional to 702,776.07, 969,829.61 and 380,486.12

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Solution

The fourth proportional to 702,776.07, 969,829.61 and 380,486.12 is: 525,070.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,776.07 : 969,829.61 = 380,486.12 : x
  2. Step 2: Convert to fraction form
    702,776.07/969,829.61 = 380,486.12/x
  3. Step 3: Cross multiply
    702,776.07x = 969,829.61 × 380,486.12
  4. Step 4: Simplify right side
    702,776.07x = 369,006,698,618.44
  5. Step 5: Solve for x
    x = 369,006,698,618.44/702,776.07
  6. Step 6: Final answer
    x = 525,070.10

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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.