Home / 685,668.19-1,029,165.67-330,931.93

Finding the Fourth Proportional to 685,668.19, 1,029,165.67 and 330,931.93

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Solution

The fourth proportional to 685,668.19, 1,029,165.67 and 330,931.93 is: 496,718.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,668.19 : 1,029,165.67 = 330,931.93 : x
  2. Step 2: Convert to fraction form
    685,668.19/1,029,165.67 = 330,931.93/x
  3. Step 3: Cross multiply
    685,668.19x = 1,029,165.67 × 330,931.93
  4. Step 4: Simplify right side
    685,668.19x = 340,583,776,317.02
  5. Step 5: Solve for x
    x = 340,583,776,317.02/685,668.19
  6. Step 6: Final answer
    x = 496,718.07

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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.