Home / 1,111,618.64-1,534,051.42-621,643.16

Finding the Fourth Proportional to 1,111,618.64, 1,534,051.42 and 621,643.16

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Solution

The fourth proportional to 1,111,618.64, 1,534,051.42 and 621,643.16 is: 857,877.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,618.64 : 1,534,051.42 = 621,643.16 : x
  2. Step 2: Convert to fraction form
    1,111,618.64/1,534,051.42 = 621,643.16/x
  3. Step 3: Cross multiply
    1,111,618.64x = 1,534,051.42 × 621,643.16
  4. Step 4: Simplify right side
    1,111,618.64x = 953,632,572,331.29
  5. Step 5: Solve for x
    x = 953,632,572,331.29/1,111,618.64
  6. Step 6: Final answer
    x = 857,877.46

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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.