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Finding the Fourth Proportional to 702,777.07, 969,830.98 and 380,487.12

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Solution

The fourth proportional to 702,777.07, 969,830.98 and 380,487.12 is: 525,071.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,777.07 : 969,830.98 = 380,487.12 : x
  2. Step 2: Convert to fraction form
    702,777.07/969,830.98 = 380,487.12/x
  3. Step 3: Cross multiply
    702,777.07x = 969,830.98 × 380,487.12
  4. Step 4: Simplify right side
    702,777.07x = 369,008,196,466.98
  5. Step 5: Solve for x
    x = 369,008,196,466.98/702,777.07
  6. Step 6: Final answer
    x = 525,071.48

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1.5x scale

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.