Home / 1,423,962.40-2,138,017.20-864,090.40

Finding the Fourth Proportional to 1,423,962.40, 2,138,017.20 and 864,090.40

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Solution

The fourth proportional to 1,423,962.40, 2,138,017.20 and 864,090.40 is: 1,297,393.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,962.40 : 2,138,017.20 = 864,090.40 : x
  2. Step 2: Convert to fraction form
    1,423,962.40/2,138,017.20 = 864,090.40/x
  3. Step 3: Cross multiply
    1,423,962.40x = 2,138,017.20 × 864,090.40
  4. Step 4: Simplify right side
    1,423,962.40x = 1,847,440,137,554.88
  5. Step 5: Solve for x
    x = 1,847,440,137,554.88/1,423,962.40
  6. Step 6: Final answer
    x = 1,297,393.90

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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.