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Finding the Fourth Proportional to 628,000.40, 942,147.60 and 207,275.86

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Solution

The fourth proportional to 628,000.40, 942,147.60 and 207,275.86 is: 310,962.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,000.40 : 942,147.60 = 207,275.86 : x
  2. Step 2: Convert to fraction form
    628,000.40/942,147.60 = 207,275.86/x
  3. Step 3: Cross multiply
    628,000.40x = 942,147.60 × 207,275.86
  4. Step 4: Simplify right side
    628,000.40x = 195,284,454,036.94
  5. Step 5: Solve for x
    x = 195,284,454,036.94/628,000.40
  6. Step 6: Final answer
    x = 310,962.31

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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.