Home / 788,125.80-1,182,480.30-255,664.20

Finding the Fourth Proportional to 788,125.80, 1,182,480.30 and 255,664.20

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Solution

The fourth proportional to 788,125.80, 1,182,480.30 and 255,664.20 is: 383,590.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,125.80 : 1,182,480.30 = 255,664.20 : x
  2. Step 2: Convert to fraction form
    788,125.80/1,182,480.30 = 255,664.20/x
  3. Step 3: Cross multiply
    788,125.80x = 1,182,480.30 × 255,664.20
  4. Step 4: Simplify right side
    788,125.80x = 302,317,879,915.26
  5. Step 5: Solve for x
    x = 302,317,879,915.26/788,125.80
  6. Step 6: Final answer
    x = 383,590.89

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Double scale
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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.