Home / 760,825.44-1,049,926.28-421,286.40

Finding the Fourth Proportional to 760,825.44, 1,049,926.28 and 421,286.40

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Solution

The fourth proportional to 760,825.44, 1,049,926.28 and 421,286.40 is: 581,368.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,825.44 : 1,049,926.28 = 421,286.40 : x
  2. Step 2: Convert to fraction form
    760,825.44/1,049,926.28 = 421,286.40/x
  3. Step 3: Cross multiply
    760,825.44x = 1,049,926.28 × 421,286.40
  4. Step 4: Simplify right side
    760,825.44x = 442,319,662,766.59
  5. Step 5: Solve for x
    x = 442,319,662,766.59/760,825.44
  6. Step 6: Final answer
    x = 581,368.13

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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.