Home / 2,990,534.20-4,486,838.10-1,308,844.60

Finding the Fourth Proportional to 2,990,534.20, 4,486,838.10 and 1,308,844.60

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Solution

The fourth proportional to 2,990,534.20, 4,486,838.10 and 1,308,844.60 is: 1,963,720.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990,534.20 : 4,486,838.10 = 1,308,844.60 : x
  2. Step 2: Convert to fraction form
    2,990,534.20/4,486,838.10 = 1,308,844.60/x
  3. Step 3: Cross multiply
    2,990,534.20x = 4,486,838.10 × 1,308,844.60
  4. Step 4: Simplify right side
    2,990,534.20x = 5,872,573,818,259.26
  5. Step 5: Solve for x
    x = 5,872,573,818,259.26/2,990,534.20
  6. Step 6: Final answer
    x = 1,963,720.67

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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.