Home / 811,496.80-1,216,208.40-589,621.60

Finding the Fourth Proportional to 811,496.80, 1,216,208.40 and 589,621.60

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Solution

The fourth proportional to 811,496.80, 1,216,208.40 and 589,621.60 is: 883,679.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,496.80 : 1,216,208.40 = 589,621.60 : x
  2. Step 2: Convert to fraction form
    811,496.80/1,216,208.40 = 589,621.60/x
  3. Step 3: Cross multiply
    811,496.80x = 1,216,208.40 × 589,621.60
  4. Step 4: Simplify right side
    811,496.80x = 717,102,742,741.44
  5. Step 5: Solve for x
    x = 717,102,742,741.44/811,496.80
  6. Step 6: Final answer
    x = 883,679.08

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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.