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Finding the Fourth Proportional to 507,818.38, 701,012.60 and 355,454.96

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Solution

The fourth proportional to 507,818.38, 701,012.60 and 355,454.96 is: 490,684.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,818.38 : 701,012.60 = 355,454.96 : x
  2. Step 2: Convert to fraction form
    507,818.38/701,012.60 = 355,454.96/x
  3. Step 3: Cross multiply
    507,818.38x = 701,012.60 × 355,454.96
  4. Step 4: Simplify right side
    507,818.38x = 249,178,405,692.50
  5. Step 5: Solve for x
    x = 249,178,405,692.50/507,818.38
  6. Step 6: Final answer
    x = 490,684.10

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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.