Home / 1,260,290.80-1,890,718.20-461,556.40

Finding the Fourth Proportional to 1,260,290.80, 1,890,718.20 and 461,556.40

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Solution

The fourth proportional to 1,260,290.80, 1,890,718.20 and 461,556.40 is: 692,437.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,290.80 : 1,890,718.20 = 461,556.40 : x
  2. Step 2: Convert to fraction form
    1,260,290.80/1,890,718.20 = 461,556.40/x
  3. Step 3: Cross multiply
    1,260,290.80x = 1,890,718.20 × 461,556.40
  4. Step 4: Simplify right side
    1,260,290.80x = 872,673,085,806.48
  5. Step 5: Solve for x
    x = 872,673,085,806.48/1,260,290.80
  6. Step 6: Final answer
    x = 692,437.88

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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.