Home / 1,397,543.60-1,928,678.64-785,888.96

Finding the Fourth Proportional to 1,397,543.60, 1,928,678.64 and 785,888.96

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Solution

The fourth proportional to 1,397,543.60, 1,928,678.64 and 785,888.96 is: 1,084,565.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,543.60 : 1,928,678.64 = 785,888.96 : x
  2. Step 2: Convert to fraction form
    1,397,543.60/1,928,678.64 = 785,888.96/x
  3. Step 3: Cross multiply
    1,397,543.60x = 1,928,678.64 × 785,888.96
  4. Step 4: Simplify right side
    1,397,543.60x = 1,515,727,250,563.81
  5. Step 5: Solve for x
    x = 1,515,727,250,563.81/1,397,543.60
  6. Step 6: Final answer
    x = 1,084,565.27

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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.