Home / 760,718.25-1,049,823.99-421,186.50

Finding the Fourth Proportional to 760,718.25, 1,049,823.99 and 421,186.50

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Solution

The fourth proportional to 760,718.25, 1,049,823.99 and 421,186.50 is: 581,255.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,718.25 : 1,049,823.99 = 421,186.50 : x
  2. Step 2: Convert to fraction form
    760,718.25/1,049,823.99 = 421,186.50/x
  3. Step 3: Cross multiply
    760,718.25x = 1,049,823.99 × 421,186.50
  4. Step 4: Simplify right side
    760,718.25x = 442,171,691,964.14
  5. Step 5: Solve for x
    x = 442,171,691,964.14/760,718.25
  6. Step 6: Final answer
    x = 581,255.53

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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.