Home / 1,440,079.80-2,160,119.70-442,807.80

Finding the Fourth Proportional to 1,440,079.80, 2,160,119.70 and 442,807.80

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Solution

The fourth proportional to 1,440,079.80, 2,160,119.70 and 442,807.80 is: 664,211.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,079.80 : 2,160,119.70 = 442,807.80 : x
  2. Step 2: Convert to fraction form
    1,440,079.80/2,160,119.70 = 442,807.80/x
  3. Step 3: Cross multiply
    1,440,079.80x = 2,160,119.70 × 442,807.80
  4. Step 4: Simplify right side
    1,440,079.80x = 956,517,852,093.66
  5. Step 5: Solve for x
    x = 956,517,852,093.66/1,440,079.80
  6. Step 6: Final answer
    x = 664,211.70

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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.