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Finding the Fourth Proportional to 579,423.40, 867,968.70 and 299,098.60

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Solution

The fourth proportional to 579,423.40, 867,968.70 and 299,098.60 is: 448,045.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,423.40 : 867,968.70 = 299,098.60 : x
  2. Step 2: Convert to fraction form
    579,423.40/867,968.70 = 299,098.60/x
  3. Step 3: Cross multiply
    579,423.40x = 867,968.70 × 299,098.60
  4. Step 4: Simplify right side
    579,423.40x = 259,608,223,013.82
  5. Step 5: Solve for x
    x = 259,608,223,013.82/579,423.40
  6. Step 6: Final answer
    x = 448,045.80

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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.