Home / 488,918.10-731,627.55-446,927.70

Finding the Fourth Proportional to 488,918.10, 731,627.55 and 446,927.70

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Solution

The fourth proportional to 488,918.10, 731,627.55 and 446,927.70 is: 668,792.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,918.10 : 731,627.55 = 446,927.70 : x
  2. Step 2: Convert to fraction form
    488,918.10/731,627.55 = 446,927.70/x
  3. Step 3: Cross multiply
    488,918.10x = 731,627.55 × 446,927.70
  4. Step 4: Simplify right side
    488,918.10x = 326,984,618,178.14
  5. Step 5: Solve for x
    x = 326,984,618,178.14/488,918.10
  6. Step 6: Final answer
    x = 668,792.21

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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.