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Finding the Fourth Proportional to 2,996,435.40, 4,494,784.30 and 866,734.80

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Solution

The fourth proportional to 2,996,435.40, 4,494,784.30 and 866,734.80 is: 1,300,140.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,996,435.40 : 4,494,784.30 = 866,734.80 : x
  2. Step 2: Convert to fraction form
    2,996,435.40/4,494,784.30 = 866,734.80/x
  3. Step 3: Cross multiply
    2,996,435.40x = 4,494,784.30 × 866,734.80
  4. Step 4: Simplify right side
    2,996,435.40x = 3,895,785,971,303.64
  5. Step 5: Solve for x
    x = 3,895,785,971,303.64/2,996,435.40
  6. Step 6: Final answer
    x = 1,300,140.15

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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.