Home / 445,973.10-668,959.65-393,485.10

Finding the Fourth Proportional to 445,973.10, 668,959.65 and 393,485.10

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Solution

The fourth proportional to 445,973.10, 668,959.65 and 393,485.10 is: 590,227.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,973.10 : 668,959.65 = 393,485.10 : x
  2. Step 2: Convert to fraction form
    445,973.10/668,959.65 = 393,485.10/x
  3. Step 3: Cross multiply
    445,973.10x = 668,959.65 × 393,485.10
  4. Step 4: Simplify right side
    445,973.10x = 263,225,654,776.22
  5. Step 5: Solve for x
    x = 263,225,654,776.22/445,973.10
  6. Step 6: Final answer
    x = 590,227.65

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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.