Home / 1,223,113.93-1,687,919.75-679,300.45

Finding the Fourth Proportional to 1,223,113.93, 1,687,919.75 and 679,300.45

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Solution

The fourth proportional to 1,223,113.93, 1,687,919.75 and 679,300.45 is: 937,447.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,113.93 : 1,687,919.75 = 679,300.45 : x
  2. Step 2: Convert to fraction form
    1,223,113.93/1,687,919.75 = 679,300.45/x
  3. Step 3: Cross multiply
    1,223,113.93x = 1,687,919.75 × 679,300.45
  4. Step 4: Simplify right side
    1,223,113.93x = 1,146,604,645,738.89
  5. Step 5: Solve for x
    x = 1,146,604,645,738.89/1,223,113.93
  6. Step 6: Final answer
    x = 937,447.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.