Home / 1,585,265.16-2,378,161.80-520,021.20

Finding the Fourth Proportional to 1,585,265.16, 2,378,161.80 and 520,021.20

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Solution

The fourth proportional to 1,585,265.16, 2,378,161.80 and 520,021.20 is: 780,118.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585,265.16 : 2,378,161.80 = 520,021.20 : x
  2. Step 2: Convert to fraction form
    1,585,265.16/2,378,161.80 = 520,021.20/x
  3. Step 3: Cross multiply
    1,585,265.16x = 2,378,161.80 × 520,021.20
  4. Step 4: Simplify right side
    1,585,265.16x = 1,236,694,553,030.16
  5. Step 5: Solve for x
    x = 1,236,694,553,030.16/1,585,265.16
  6. Step 6: Final answer
    x = 780,118.42

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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.