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Finding the Fourth Proportional to 571,809, 789,598.04 and 357,315.60

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Solution

The fourth proportional to 571,809, 789,598.04 and 357,315.60 is: 493,408.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,809 : 789,598.04 = 357,315.60 : x
  2. Step 2: Convert to fraction form
    571,809/789,598.04 = 357,315.60/x
  3. Step 3: Cross multiply
    571,809x = 789,598.04 × 357,315.60
  4. Step 4: Simplify right side
    571,809x = 282,135,697,421.42
  5. Step 5: Solve for x
    x = 282,135,697,421.42/571,809
  6. Step 6: Final answer
    x = 493,408.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.