Home / 525,789.20-788,347.55-312,500.21

Finding the Fourth Proportional to 525,789.20, 788,347.55 and 312,500.21

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Solution

The fourth proportional to 525,789.20, 788,347.55 and 312,500.21 is: 468,550.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,789.20 : 788,347.55 = 312,500.21 : x
  2. Step 2: Convert to fraction form
    525,789.20/788,347.55 = 312,500.21/x
  3. Step 3: Cross multiply
    525,789.20x = 788,347.55 × 312,500.21
  4. Step 4: Simplify right side
    525,789.20x = 246,358,773,365.48
  5. Step 5: Solve for x
    x = 246,358,773,365.48/525,789.20
  6. Step 6: Final answer
    x = 468,550.46

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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.