Home / 760,825.90-1,141,140.43-287,449.75

Finding the Fourth Proportional to 760,825.90, 1,141,140.43 and 287,449.75

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Solution

The fourth proportional to 760,825.90, 1,141,140.43 and 287,449.75 is: 431,137.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,825.90 : 1,141,140.43 = 287,449.75 : x
  2. Step 2: Convert to fraction form
    760,825.90/1,141,140.43 = 287,449.75/x
  3. Step 3: Cross multiply
    760,825.90x = 1,141,140.43 × 287,449.75
  4. Step 4: Simplify right side
    760,825.90x = 328,020,531,318.39
  5. Step 5: Solve for x
    x = 328,020,531,318.39/760,825.90
  6. Step 6: Final answer
    x = 431,137.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.