Home / 642,756.37-964,144.08-243,289.89

Finding the Fourth Proportional to 642,756.37, 964,144.08 and 243,289.89

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Solution

The fourth proportional to 642,756.37, 964,144.08 and 243,289.89 is: 364,938.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,756.37 : 964,144.08 = 243,289.89 : x
  2. Step 2: Convert to fraction form
    642,756.37/964,144.08 = 243,289.89/x
  3. Step 3: Cross multiply
    642,756.37x = 964,144.08 × 243,289.89
  4. Step 4: Simplify right side
    642,756.37x = 234,566,507,167.35
  5. Step 5: Solve for x
    x = 234,566,507,167.35/642,756.37
  6. Step 6: Final answer
    x = 364,938.44

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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.