Home / 1,397,390.66-1,928,271.86-808,588.32

Finding the Fourth Proportional to 1,397,390.66, 1,928,271.86 and 808,588.32

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Solution

The fourth proportional to 1,397,390.66, 1,928,271.86 and 808,588.32 is: 1,115,778.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,390.66 : 1,928,271.86 = 808,588.32 : x
  2. Step 2: Convert to fraction form
    1,397,390.66/1,928,271.86 = 808,588.32/x
  3. Step 3: Cross multiply
    1,397,390.66x = 1,928,271.86 × 808,588.32
  4. Step 4: Simplify right side
    1,397,390.66x = 1,559,178,103,695.51
  5. Step 5: Solve for x
    x = 1,559,178,103,695.51/1,397,390.66
  6. Step 6: Final answer
    x = 1,115,778.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.