Home / 816,101.80-1,223,277.90-310,467.40

Finding the Fourth Proportional to 816,101.80, 1,223,277.90 and 310,467.40

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Solution

The fourth proportional to 816,101.80, 1,223,277.90 and 310,467.40 is: 465,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,101.80 : 1,223,277.90 = 310,467.40 : x
  2. Step 2: Convert to fraction form
    816,101.80/1,223,277.90 = 310,467.40/x
  3. Step 3: Cross multiply
    816,101.80x = 1,223,277.90 × 310,467.40
  4. Step 4: Simplify right side
    816,101.80x = 379,787,909,090.46
  5. Step 5: Solve for x
    x = 379,787,909,090.46/816,101.80
  6. Step 6: Final answer
    x = 465,368.30

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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.