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Finding the Fourth Proportional to 770,261.04, 1,062,602.04 and 498,416.64

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Solution

The fourth proportional to 770,261.04, 1,062,602.04 and 498,416.64 is: 687,583.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,261.04 : 1,062,602.04 = 498,416.64 : x
  2. Step 2: Convert to fraction form
    770,261.04/1,062,602.04 = 498,416.64/x
  3. Step 3: Cross multiply
    770,261.04x = 1,062,602.04 × 498,416.64
  4. Step 4: Simplify right side
    770,261.04x = 529,618,538,433.95
  5. Step 5: Solve for x
    x = 529,618,538,433.95/770,261.04
  6. Step 6: Final answer
    x = 687,583.18

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Double scale
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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.