Home / 858,566.40-1,286,812.80-437,625.60

Finding the Fourth Proportional to 858,566.40, 1,286,812.80 and 437,625.60

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Solution

The fourth proportional to 858,566.40, 1,286,812.80 and 437,625.60 is: 655,909.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,566.40 : 1,286,812.80 = 437,625.60 : x
  2. Step 2: Convert to fraction form
    858,566.40/1,286,812.80 = 437,625.60/x
  3. Step 3: Cross multiply
    858,566.40x = 1,286,812.80 × 437,625.60
  4. Step 4: Simplify right side
    858,566.40x = 563,142,223,687.68
  5. Step 5: Solve for x
    x = 563,142,223,687.68/858,566.40
  6. Step 6: Final answer
    x = 655,909.93

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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.