Home / 443,621.40-664,557.30-265,599.60

Finding the Fourth Proportional to 443,621.40, 664,557.30 and 265,599.60

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Solution

The fourth proportional to 443,621.40, 664,557.30 and 265,599.60 is: 397,875.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,621.40 : 664,557.30 = 265,599.60 : x
  2. Step 2: Convert to fraction form
    443,621.40/664,557.30 = 265,599.60/x
  3. Step 3: Cross multiply
    443,621.40x = 664,557.30 × 265,599.60
  4. Step 4: Simplify right side
    443,621.40x = 176,506,153,057.08
  5. Step 5: Solve for x
    x = 176,506,153,057.08/443,621.40
  6. Step 6: Final answer
    x = 397,875.65

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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.