Home / 398,604,405.40-597,906,608.10-383,298,904.60

Finding the Fourth Proportional to 398,604,405.40, 597,906,608.10 and 383,298,904.60

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Solution

The fourth proportional to 398,604,405.40, 597,906,608.10 and 383,298,904.60 is: 574,948,356.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,604,405.40 : 597,906,608.10 = 383,298,904.60 : x
  2. Step 2: Convert to fraction form
    398,604,405.40/597,906,608.10 = 383,298,904.60/x
  3. Step 3: Cross multiply
    398,604,405.40x = 597,906,608.10 × 383,298,904.60
  4. Step 4: Simplify right side
    398,604,405.40x = 229,176,947,937,831,520
  5. Step 5: Solve for x
    x = 229,176,947,937,831,520/398,604,405.40
  6. Step 6: Final answer
    x = 574,948,356.90

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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.