Home / 808,840.80-1,213,261.20-247,802.40

Finding the Fourth Proportional to 808,840.80, 1,213,261.20 and 247,802.40

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Solution

The fourth proportional to 808,840.80, 1,213,261.20 and 247,802.40 is: 371,703.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,840.80 : 1,213,261.20 = 247,802.40 : x
  2. Step 2: Convert to fraction form
    808,840.80/1,213,261.20 = 247,802.40/x
  3. Step 3: Cross multiply
    808,840.80x = 1,213,261.20 × 247,802.40
  4. Step 4: Simplify right side
    808,840.80x = 300,649,037,186.88
  5. Step 5: Solve for x
    x = 300,649,037,186.88/808,840.80
  6. Step 6: Final answer
    x = 371,703.60

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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.