Home / 525,943.30-788,112.10-312,290.47

Finding the Fourth Proportional to 525,943.30, 788,112.10 and 312,290.47

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Solution

The fourth proportional to 525,943.30, 788,112.10 and 312,290.47 is: 467,959.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,943.30 : 788,112.10 = 312,290.47 : x
  2. Step 2: Convert to fraction form
    525,943.30/788,112.10 = 312,290.47/x
  3. Step 3: Cross multiply
    525,943.30x = 788,112.10 × 312,290.47
  4. Step 4: Simplify right side
    525,943.30x = 246,119,898,121.69
  5. Step 5: Solve for x
    x = 246,119,898,121.69/525,943.30
  6. Step 6: Final answer
    x = 467,959.00

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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.