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Finding the Fourth Proportional to 808,840.80, 1,213,261.20 and 793,094.40

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Solution

The fourth proportional to 808,840.80, 1,213,261.20 and 793,094.40 is: 1,189,641.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,840.80 : 1,213,261.20 = 793,094.40 : x
  2. Step 2: Convert to fraction form
    808,840.80/1,213,261.20 = 793,094.40/x
  3. Step 3: Cross multiply
    808,840.80x = 1,213,261.20 × 793,094.40
  4. Step 4: Simplify right side
    808,840.80x = 962,230,663,457.28
  5. Step 5: Solve for x
    x = 962,230,663,457.28/808,840.80
  6. Step 6: Final answer
    x = 1,189,641.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.