Home / 679,905.90-1,020,644.55-364,977.90

Finding the Fourth Proportional to 679,905.90, 1,020,644.55 and 364,977.90

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Solution

The fourth proportional to 679,905.90, 1,020,644.55 and 364,977.90 is: 547,888.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,905.90 : 1,020,644.55 = 364,977.90 : x
  2. Step 2: Convert to fraction form
    679,905.90/1,020,644.55 = 364,977.90/x
  3. Step 3: Cross multiply
    679,905.90x = 1,020,644.55 × 364,977.90
  4. Step 4: Simplify right side
    679,905.90x = 372,512,704,505.45
  5. Step 5: Solve for x
    x = 372,512,704,505.45/679,905.90
  6. Step 6: Final answer
    x = 547,888.62

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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.