Home / 764,677.86-1,055,238.06-415,810.63

Finding the Fourth Proportional to 764,677.86, 1,055,238.06 and 415,810.63

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Solution

The fourth proportional to 764,677.86, 1,055,238.06 and 415,810.63 is: 573,809.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,677.86 : 1,055,238.06 = 415,810.63 : x
  2. Step 2: Convert to fraction form
    764,677.86/1,055,238.06 = 415,810.63/x
  3. Step 3: Cross multiply
    764,677.86x = 1,055,238.06 × 415,810.63
  4. Step 4: Simplify right side
    764,677.86x = 438,779,202,528.58
  5. Step 5: Solve for x
    x = 438,779,202,528.58/764,677.86
  6. Step 6: Final answer
    x = 573,809.21

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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.