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Finding the Fourth Proportional to 589,613.80, 884,420.70 and 340,004.20

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Solution

The fourth proportional to 589,613.80, 884,420.70 and 340,004.20 is: 510,006.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,613.80 : 884,420.70 = 340,004.20 : x
  2. Step 2: Convert to fraction form
    589,613.80/884,420.70 = 340,004.20/x
  3. Step 3: Cross multiply
    589,613.80x = 884,420.70 × 340,004.20
  4. Step 4: Simplify right side
    589,613.80x = 300,706,752,566.94
  5. Step 5: Solve for x
    x = 300,706,752,566.94/589,613.80
  6. Step 6: Final answer
    x = 510,006.30

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Similar ratio
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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.