Home / 1,298,771.80-1,948,464.90-412,307.80

Finding the Fourth Proportional to 1,298,771.80, 1,948,464.90 and 412,307.80

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Solution

The fourth proportional to 1,298,771.80, 1,948,464.90 and 412,307.80 is: 618,559.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,771.80 : 1,948,464.90 = 412,307.80 : x
  2. Step 2: Convert to fraction form
    1,298,771.80/1,948,464.90 = 412,307.80/x
  3. Step 3: Cross multiply
    1,298,771.80x = 1,948,464.90 × 412,307.80
  4. Step 4: Simplify right side
    1,298,771.80x = 803,367,276,296.22
  5. Step 5: Solve for x
    x = 803,367,276,296.22/1,298,771.80
  6. Step 6: Final answer
    x = 618,559.22

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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.