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Finding the Fourth Proportional to 702,840.06, 969,914.86 and 380,549.16

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Solution

The fourth proportional to 702,840.06, 969,914.86 and 380,549.16 is: 525,155.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,840.06 : 969,914.86 = 380,549.16 : x
  2. Step 2: Convert to fraction form
    702,840.06/969,914.86 = 380,549.16/x
  3. Step 3: Cross multiply
    702,840.06x = 969,914.86 × 380,549.16
  4. Step 4: Simplify right side
    702,840.06x = 369,100,285,244.52
  5. Step 5: Solve for x
    x = 369,100,285,244.52/702,840.06
  6. Step 6: Final answer
    x = 525,155.45

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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.