Home / 760,817.97-1,049,915.94-421,278.93

Finding the Fourth Proportional to 760,817.97, 1,049,915.94 and 421,278.93

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Solution

The fourth proportional to 760,817.97, 1,049,915.94 and 421,278.93 is: 581,357.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,817.97 : 1,049,915.94 = 421,278.93 : x
  2. Step 2: Convert to fraction form
    760,817.97/1,049,915.94 = 421,278.93/x
  3. Step 3: Cross multiply
    760,817.97x = 1,049,915.94 × 421,278.93
  4. Step 4: Simplify right side
    760,817.97x = 442,307,463,793.14
  5. Step 5: Solve for x
    x = 442,307,463,793.14/760,817.97
  6. Step 6: Final answer
    x = 581,357.80

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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.