Home / 1,306,970.40-1,960,455.60-859,072.80

Finding the Fourth Proportional to 1,306,970.40, 1,960,455.60 and 859,072.80

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Solution

The fourth proportional to 1,306,970.40, 1,960,455.60 and 859,072.80 is: 1,288,609.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,970.40 : 1,960,455.60 = 859,072.80 : x
  2. Step 2: Convert to fraction form
    1,306,970.40/1,960,455.60 = 859,072.80/x
  3. Step 3: Cross multiply
    1,306,970.40x = 1,960,455.60 × 859,072.80
  4. Step 4: Simplify right side
    1,306,970.40x = 1,684,174,081,567.68
  5. Step 5: Solve for x
    x = 1,684,174,081,567.68/1,306,970.40
  6. Step 6: Final answer
    x = 1,288,609.20

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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.