Home / 858,605.40-1,286,871.30-437,664.60

Finding the Fourth Proportional to 858,605.40, 1,286,871.30 and 437,664.60

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Solution

The fourth proportional to 858,605.40, 1,286,871.30 and 437,664.60 is: 655,968.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,605.40 : 1,286,871.30 = 437,664.60 : x
  2. Step 2: Convert to fraction form
    858,605.40/1,286,871.30 = 437,664.60/x
  3. Step 3: Cross multiply
    858,605.40x = 1,286,871.30 × 437,664.60
  4. Step 4: Simplify right side
    858,605.40x = 563,218,012,765.98
  5. Step 5: Solve for x
    x = 563,218,012,765.98/858,605.40
  6. Step 6: Final answer
    x = 655,968.40

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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.