Home / 1,989,117.45-2,985,763.11-1,762,860.69

Finding the Fourth Proportional to 1,989,117.45, 2,985,763.11 and 1,762,860.69

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Solution

The fourth proportional to 1,989,117.45, 2,985,763.11 and 1,762,860.69 is: 2,646,140.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,117.45 : 2,985,763.11 = 1,762,860.69 : x
  2. Step 2: Convert to fraction form
    1,989,117.45/2,985,763.11 = 1,762,860.69/x
  3. Step 3: Cross multiply
    1,989,117.45x = 2,985,763.11 × 1,762,860.69
  4. Step 4: Simplify right side
    1,989,117.45x = 5,263,484,416,271.15
  5. Step 5: Solve for x
    x = 5,263,484,416,271.15/1,989,117.45
  6. Step 6: Final answer
    x = 2,646,140.59

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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.