Home / 780,362.56-1,077,014.80-458,249.12

Finding the Fourth Proportional to 780,362.56, 1,077,014.80 and 458,249.12

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Solution

The fourth proportional to 780,362.56, 1,077,014.80 and 458,249.12 is: 632,451.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,362.56 : 1,077,014.80 = 458,249.12 : x
  2. Step 2: Convert to fraction form
    780,362.56/1,077,014.80 = 458,249.12/x
  3. Step 3: Cross multiply
    780,362.56x = 1,077,014.80 × 458,249.12
  4. Step 4: Simplify right side
    780,362.56x = 493,541,084,326.98
  5. Step 5: Solve for x
    x = 493,541,084,326.98/780,362.56
  6. Step 6: Final answer
    x = 632,451.00

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1.5x scale

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.