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Finding the Fourth Proportional to 607,890.40, 852,912.80 and 607,890.40

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Solution

The fourth proportional to 607,890.40, 852,912.80 and 607,890.40 is: 852,912.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,890.40 : 852,912.80 = 607,890.40 : x
  2. Step 2: Convert to fraction form
    607,890.40/852,912.80 = 607,890.40/x
  3. Step 3: Cross multiply
    607,890.40x = 852,912.80 × 607,890.40
  4. Step 4: Simplify right side
    607,890.40x = 518,477,503,157.12
  5. Step 5: Solve for x
    x = 518,477,503,157.12/607,890.40
  6. Step 6: Final answer
    x = 852,912.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.