Home / 858,482.90-1,286,687.55-437,542.10

Finding the Fourth Proportional to 858,482.90, 1,286,687.55 and 437,542.10

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Solution

The fourth proportional to 858,482.90, 1,286,687.55 and 437,542.10 is: 655,784.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,482.90 : 1,286,687.55 = 437,542.10 : x
  2. Step 2: Convert to fraction form
    858,482.90/1,286,687.55 = 437,542.10/x
  3. Step 3: Cross multiply
    858,482.90x = 1,286,687.55 × 437,542.10
  4. Step 4: Simplify right side
    858,482.90x = 562,979,972,670.86
  5. Step 5: Solve for x
    x = 562,979,972,670.86/858,482.90
  6. Step 6: Final answer
    x = 655,784.73

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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.