Home / 760,806.59-1,049,944.74-421,274.84

Finding the Fourth Proportional to 760,806.59, 1,049,944.74 and 421,274.84

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Solution

The fourth proportional to 760,806.59, 1,049,944.74 and 421,274.84 is: 581,376.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,806.59 : 1,049,944.74 = 421,274.84 : x
  2. Step 2: Convert to fraction form
    760,806.59/1,049,944.74 = 421,274.84/x
  3. Step 3: Cross multiply
    760,806.59x = 1,049,944.74 × 421,274.84
  4. Step 4: Simplify right side
    760,806.59x = 442,315,302,352.34
  5. Step 5: Solve for x
    x = 442,315,302,352.34/760,806.59
  6. Step 6: Final answer
    x = 581,376.80

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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.