Home / 654,905.48-903,438.74-382,795.60

Finding the Fourth Proportional to 654,905.48, 903,438.74 and 382,795.60

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Solution

The fourth proportional to 654,905.48, 903,438.74 and 382,795.60 is: 528,064.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,905.48 : 903,438.74 = 382,795.60 : x
  2. Step 2: Convert to fraction form
    654,905.48/903,438.74 = 382,795.60/x
  3. Step 3: Cross multiply
    654,905.48x = 903,438.74 × 382,795.60
  4. Step 4: Simplify right side
    654,905.48x = 345,832,374,541.54
  5. Step 5: Solve for x
    x = 345,832,374,541.54/654,905.48
  6. Step 6: Final answer
    x = 528,064.56

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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.