Home / 525,273.40-788,784.90-288,785.80

Finding the Fourth Proportional to 525,273.40, 788,784.90 and 288,785.80

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Solution

The fourth proportional to 525,273.40, 788,784.90 and 288,785.80 is: 433,659.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,273.40 : 788,784.90 = 288,785.80 : x
  2. Step 2: Convert to fraction form
    525,273.40/788,784.90 = 288,785.80/x
  3. Step 3: Cross multiply
    525,273.40x = 788,784.90 × 288,785.80
  4. Step 4: Simplify right side
    525,273.40x = 227,789,878,374.42
  5. Step 5: Solve for x
    x = 227,789,878,374.42/525,273.40
  6. Step 6: Final answer
    x = 433,659.65

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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.