Home / 1,330,017.51-1,995,306.78-431,389.46

Finding the Fourth Proportional to 1,330,017.51, 1,995,306.78 and 431,389.46

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Solution

The fourth proportional to 1,330,017.51, 1,995,306.78 and 431,389.46 is: 647,175.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,017.51 : 1,995,306.78 = 431,389.46 : x
  2. Step 2: Convert to fraction form
    1,330,017.51/1,995,306.78 = 431,389.46/x
  3. Step 3: Cross multiply
    1,330,017.51x = 1,995,306.78 × 431,389.46
  4. Step 4: Simplify right side
    1,330,017.51x = 860,754,314,358.54
  5. Step 5: Solve for x
    x = 860,754,314,358.54/1,330,017.51
  6. Step 6: Final answer
    x = 647,175.17

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1.5x scale

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.