Home / 926,972.70-1,390,459.05-911,226.30

Finding the Fourth Proportional to 926,972.70, 1,390,459.05 and 911,226.30

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Solution

The fourth proportional to 926,972.70, 1,390,459.05 and 911,226.30 is: 1,366,839.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,972.70 : 1,390,459.05 = 911,226.30 : x
  2. Step 2: Convert to fraction form
    926,972.70/1,390,459.05 = 911,226.30/x
  3. Step 3: Cross multiply
    926,972.70x = 1,390,459.05 × 911,226.30
  4. Step 4: Simplify right side
    926,972.70x = 1,267,022,855,433.02
  5. Step 5: Solve for x
    x = 1,267,022,855,433.02/926,972.70
  6. Step 6: Final answer
    x = 1,366,839.45

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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.