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Finding the Fourth Proportional to 606,919.80, 910,379.70 and 603,420.60

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Solution

The fourth proportional to 606,919.80, 910,379.70 and 603,420.60 is: 905,130.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,919.80 : 910,379.70 = 603,420.60 : x
  2. Step 2: Convert to fraction form
    606,919.80/910,379.70 = 603,420.60/x
  3. Step 3: Cross multiply
    606,919.80x = 910,379.70 × 603,420.60
  4. Step 4: Simplify right side
    606,919.80x = 549,341,864,801.82
  5. Step 5: Solve for x
    x = 549,341,864,801.82/606,919.80
  6. Step 6: Final answer
    x = 905,130.90

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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.