Home / 858,368.10-1,290,662.55-839,705.70

Finding the Fourth Proportional to 858,368.10, 1,290,662.55 and 839,705.70

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Solution

The fourth proportional to 858,368.10, 1,290,662.55 and 839,705.70 is: 1,262,601.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,368.10 : 1,290,662.55 = 839,705.70 : x
  2. Step 2: Convert to fraction form
    858,368.10/1,290,662.55 = 839,705.70/x
  3. Step 3: Cross multiply
    858,368.10x = 1,290,662.55 × 839,705.70
  4. Step 4: Simplify right side
    858,368.10x = 1,083,776,700,011.54
  5. Step 5: Solve for x
    x = 1,083,776,700,011.54/858,368.10
  6. Step 6: Final answer
    x = 1,262,601.32

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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.