Home / 525,819.37-788,962.35-390,750.25

Finding the Fourth Proportional to 525,819.37, 788,962.35 and 390,750.25

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Solution

The fourth proportional to 525,819.37, 788,962.35 and 390,750.25 is: 586,298.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,819.37 : 788,962.35 = 390,750.25 : x
  2. Step 2: Convert to fraction form
    525,819.37/788,962.35 = 390,750.25/x
  3. Step 3: Cross multiply
    525,819.37x = 788,962.35 × 390,750.25
  4. Step 4: Simplify right side
    525,819.37x = 308,287,235,503.09
  5. Step 5: Solve for x
    x = 308,287,235,503.09/525,819.37
  6. Step 6: Final answer
    x = 586,298.74

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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.