Home / 525,282.60-788,507.10-325,828.20

Finding the Fourth Proportional to 525,282.60, 788,507.10 and 325,828.20

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Solution

The fourth proportional to 525,282.60, 788,507.10 and 325,828.20 is: 489,104.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,282.60 : 788,507.10 = 325,828.20 : x
  2. Step 2: Convert to fraction form
    525,282.60/788,507.10 = 325,828.20/x
  3. Step 3: Cross multiply
    525,282.60x = 788,507.10 × 325,828.20
  4. Step 4: Simplify right side
    525,282.60x = 256,917,849,080.22
  5. Step 5: Solve for x
    x = 256,917,849,080.22/525,282.60
  6. Step 6: Final answer
    x = 489,104.05

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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.