Home / 699,152.16-964,836.72-397,348.32

Finding the Fourth Proportional to 699,152.16, 964,836.72 and 397,348.32

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Solution

The fourth proportional to 699,152.16, 964,836.72 and 397,348.32 is: 548,344.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,152.16 : 964,836.72 = 397,348.32 : x
  2. Step 2: Convert to fraction form
    699,152.16/964,836.72 = 397,348.32/x
  3. Step 3: Cross multiply
    699,152.16x = 964,836.72 × 397,348.32
  4. Step 4: Simplify right side
    699,152.16x = 383,376,249,766.31
  5. Step 5: Solve for x
    x = 383,376,249,766.31/699,152.16
  6. Step 6: Final answer
    x = 548,344.51

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.