Home / 679,919.40-1,020,664.80-364,991.40

Finding the Fourth Proportional to 679,919.40, 1,020,664.80 and 364,991.40

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Solution

The fourth proportional to 679,919.40, 1,020,664.80 and 364,991.40 is: 547,908.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,919.40 : 1,020,664.80 = 364,991.40 : x
  2. Step 2: Convert to fraction form
    679,919.40/1,020,664.80 = 364,991.40/x
  3. Step 3: Cross multiply
    679,919.40x = 1,020,664.80 × 364,991.40
  4. Step 4: Simplify right side
    679,919.40x = 372,533,874,282.72
  5. Step 5: Solve for x
    x = 372,533,874,282.72/679,919.40
  6. Step 6: Final answer
    x = 547,908.88

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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.