Home / 780,041.20-1,170,061.80-660,466.98

Finding the Fourth Proportional to 780,041.20, 1,170,061.80 and 660,466.98

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Solution

The fourth proportional to 780,041.20, 1,170,061.80 and 660,466.98 is: 990,700.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,041.20 : 1,170,061.80 = 660,466.98 : x
  2. Step 2: Convert to fraction form
    780,041.20/1,170,061.80 = 660,466.98/x
  3. Step 3: Cross multiply
    780,041.20x = 1,170,061.80 × 660,466.98
  4. Step 4: Simplify right side
    780,041.20x = 772,787,183,459.36
  5. Step 5: Solve for x
    x = 772,787,183,459.36/780,041.20
  6. Step 6: Final answer
    x = 990,700.47

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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.