Home / 445,330.80-669,551.40-435,999.60

Finding the Fourth Proportional to 445,330.80, 669,551.40 and 435,999.60

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Solution

The fourth proportional to 445,330.80, 669,551.40 and 435,999.60 is: 655,522.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,330.80 : 669,551.40 = 435,999.60 : x
  2. Step 2: Convert to fraction form
    445,330.80/669,551.40 = 435,999.60/x
  3. Step 3: Cross multiply
    445,330.80x = 669,551.40 × 435,999.60
  4. Step 4: Simplify right side
    445,330.80x = 291,924,142,579.44
  5. Step 5: Solve for x
    x = 291,924,142,579.44/445,330.80
  6. Step 6: Final answer
    x = 655,522.01

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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.