Home / 4,286,836.81-6,428,900.05-1,407,728.98

Finding the Fourth Proportional to 4,286,836.81, 6,428,900.05 and 1,407,728.98

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Solution

The fourth proportional to 4,286,836.81, 6,428,900.05 and 1,407,728.98 is: 2,111,148.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,286,836.81 : 6,428,900.05 = 1,407,728.98 : x
  2. Step 2: Convert to fraction form
    4,286,836.81/6,428,900.05 = 1,407,728.98/x
  3. Step 3: Cross multiply
    4,286,836.81x = 6,428,900.05 × 1,407,728.98
  4. Step 4: Simplify right side
    4,286,836.81x = 9,050,148,902,869.81
  5. Step 5: Solve for x
    x = 9,050,148,902,869.81/4,286,836.81
  6. Step 6: Final answer
    x = 2,111,148.46

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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.