Home / 1,106,384.50-1,660,977.51-678,870.10

Finding the Fourth Proportional to 1,106,384.50, 1,660,977.51 and 678,870.10

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Solution

The fourth proportional to 1,106,384.50, 1,660,977.51 and 678,870.10 is: 1,019,164.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,106,384.50 : 1,660,977.51 = 678,870.10 : x
  2. Step 2: Convert to fraction form
    1,106,384.50/1,660,977.51 = 678,870.10/x
  3. Step 3: Cross multiply
    1,106,384.50x = 1,660,977.51 × 678,870.10
  4. Step 4: Simplify right side
    1,106,384.50x = 1,127,587,968,311.45
  5. Step 5: Solve for x
    x = 1,127,587,968,311.45/1,106,384.50
  6. Step 6: Final answer
    x = 1,019,164.65

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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.