Home / 1,765,353.20-2,648,423.45-643,422.20

Finding the Fourth Proportional to 1,765,353.20, 2,648,423.45 and 643,422.20

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Solution

The fourth proportional to 1,765,353.20, 2,648,423.45 and 643,422.20 is: 965,276.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,765,353.20 : 2,648,423.45 = 643,422.20 : x
  2. Step 2: Convert to fraction form
    1,765,353.20/2,648,423.45 = 643,422.20/x
  3. Step 3: Cross multiply
    1,765,353.20x = 2,648,423.45 × 643,422.20
  4. Step 4: Simplify right side
    1,765,353.20x = 1,704,054,426,271.36
  5. Step 5: Solve for x
    x = 1,704,054,426,271.36/1,765,353.20
  6. Step 6: Final answer
    x = 965,276.77

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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.