Home / 780,040.20-1,170,060.30-660,465.98

Finding the Fourth Proportional to 780,040.20, 1,170,060.30 and 660,465.98

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Solution

The fourth proportional to 780,040.20, 1,170,060.30 and 660,465.98 is: 990,698.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,040.20 : 1,170,060.30 = 660,465.98 : x
  2. Step 2: Convert to fraction form
    780,040.20/1,170,060.30 = 660,465.98/x
  3. Step 3: Cross multiply
    780,040.20x = 1,170,060.30 × 660,465.98
  4. Step 4: Simplify right side
    780,040.20x = 772,785,016,848.29
  5. Step 5: Solve for x
    x = 772,785,016,848.29/780,040.20
  6. Step 6: Final answer
    x = 990,698.96

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1.5x scale

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.