Home / 938,004.30-1,406,678.40-488,575.80

Finding the Fourth Proportional to 938,004.30, 1,406,678.40 and 488,575.80

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Solution

The fourth proportional to 938,004.30, 1,406,678.40 and 488,575.80 is: 732,692.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,004.30 : 1,406,678.40 = 488,575.80 : x
  2. Step 2: Convert to fraction form
    938,004.30/1,406,678.40 = 488,575.80/x
  3. Step 3: Cross multiply
    938,004.30x = 1,406,678.40 × 488,575.80
  4. Step 4: Simplify right side
    938,004.30x = 687,269,024,622.72
  5. Step 5: Solve for x
    x = 687,269,024,622.72/938,004.30
  6. Step 6: Final answer
    x = 732,692.83

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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.