Home / 1,980,584.40-2,971,980.16-1,069,748.45

Finding the Fourth Proportional to 1,980,584.40, 2,971,980.16 and 1,069,748.45

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Solution

The fourth proportional to 1,980,584.40, 2,971,980.16 and 1,069,748.45 is: 1,605,218.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,584.40 : 2,971,980.16 = 1,069,748.45 : x
  2. Step 2: Convert to fraction form
    1,980,584.40/2,971,980.16 = 1,069,748.45/x
  3. Step 3: Cross multiply
    1,980,584.40x = 2,971,980.16 × 1,069,748.45
  4. Step 4: Simplify right side
    1,980,584.40x = 3,179,271,152,056.48
  5. Step 5: Solve for x
    x = 3,179,271,152,056.48/1,980,584.40
  6. Step 6: Final answer
    x = 1,605,218.72

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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.