Home / 1,470,211.40-2,203,678.70-839,427.40

Finding the Fourth Proportional to 1,470,211.40, 2,203,678.70 and 839,427.40

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Solution

The fourth proportional to 1,470,211.40, 2,203,678.70 and 839,427.40 is: 1,258,205.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,470,211.40 : 2,203,678.70 = 839,427.40 : x
  2. Step 2: Convert to fraction form
    1,470,211.40/2,203,678.70 = 839,427.40/x
  3. Step 3: Cross multiply
    1,470,211.40x = 2,203,678.70 × 839,427.40
  4. Step 4: Simplify right side
    1,470,211.40x = 1,849,828,281,576.38
  5. Step 5: Solve for x
    x = 1,849,828,281,576.38/1,470,211.40
  6. Step 6: Final answer
    x = 1,258,205.64

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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.