Home / 859,783.73-1,289,675.56-385,915.50

Finding the Fourth Proportional to 859,783.73, 1,289,675.56 and 385,915.50

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Solution

The fourth proportional to 859,783.73, 1,289,675.56 and 385,915.50 is: 578,873.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,783.73 : 1,289,675.56 = 385,915.50 : x
  2. Step 2: Convert to fraction form
    859,783.73/1,289,675.56 = 385,915.50/x
  3. Step 3: Cross multiply
    859,783.73x = 1,289,675.56 × 385,915.50
  4. Step 4: Simplify right side
    859,783.73x = 497,705,788,575.18
  5. Step 5: Solve for x
    x = 497,705,788,575.18/859,783.73
  6. Step 6: Final answer
    x = 578,873.23

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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.