Home / 1,102,079.20-1,649,965.20-678,503.20

Finding the Fourth Proportional to 1,102,079.20, 1,649,965.20 and 678,503.20

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Solution

The fourth proportional to 1,102,079.20, 1,649,965.20 and 678,503.20 is: 1,015,813.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,079.20 : 1,649,965.20 = 678,503.20 : x
  2. Step 2: Convert to fraction form
    1,102,079.20/1,649,965.20 = 678,503.20/x
  3. Step 3: Cross multiply
    1,102,079.20x = 1,649,965.20 × 678,503.20
  4. Step 4: Simplify right side
    1,102,079.20x = 1,119,506,668,088.64
  5. Step 5: Solve for x
    x = 1,119,506,668,088.64/1,102,079.20
  6. Step 6: Final answer
    x = 1,015,813.26

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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.