Home / 858,106.95-1,287,368.52-259,032.32

Finding the Fourth Proportional to 858,106.95, 1,287,368.52 and 259,032.32

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Solution

The fourth proportional to 858,106.95, 1,287,368.52 and 259,032.32 is: 388,611.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,106.95 : 1,287,368.52 = 259,032.32 : x
  2. Step 2: Convert to fraction form
    858,106.95/1,287,368.52 = 259,032.32/x
  3. Step 3: Cross multiply
    858,106.95x = 1,287,368.52 × 259,032.32
  4. Step 4: Simplify right side
    858,106.95x = 333,470,054,430.57
  5. Step 5: Solve for x
    x = 333,470,054,430.57/858,106.95
  6. Step 6: Final answer
    x = 388,611.30

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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.