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Finding the Fourth Proportional to 628,728.48, 943,102.56 and 350,017.12

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Solution

The fourth proportional to 628,728.48, 943,102.56 and 350,017.12 is: 525,031.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,728.48 : 943,102.56 = 350,017.12 : x
  2. Step 2: Convert to fraction form
    628,728.48/943,102.56 = 350,017.12/x
  3. Step 3: Cross multiply
    628,728.48x = 943,102.56 × 350,017.12
  4. Step 4: Simplify right side
    628,728.48x = 330,102,041,915.83
  5. Step 5: Solve for x
    x = 330,102,041,915.83/628,728.48
  6. Step 6: Final answer
    x = 525,031.16

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1.5x scale

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.