Home / 589,109.04-812,920.55-330,965.73

Finding the Fourth Proportional to 589,109.04, 812,920.55 and 330,965.73

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Solution

The fourth proportional to 589,109.04, 812,920.55 and 330,965.73 is: 456,704.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,109.04 : 812,920.55 = 330,965.73 : x
  2. Step 2: Convert to fraction form
    589,109.04/812,920.55 = 330,965.73/x
  3. Step 3: Cross multiply
    589,109.04x = 812,920.55 × 330,965.73
  4. Step 4: Simplify right side
    589,109.04x = 269,048,841,607.92
  5. Step 5: Solve for x
    x = 269,048,841,607.92/589,109.04
  6. Step 6: Final answer
    x = 456,704.66

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.