Home / 718,029.24-990,841.80-395,675.16

Finding the Fourth Proportional to 718,029.24, 990,841.80 and 395,675.16

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Solution

The fourth proportional to 718,029.24, 990,841.80 and 395,675.16 is: 546,010.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,029.24 : 990,841.80 = 395,675.16 : x
  2. Step 2: Convert to fraction form
    718,029.24/990,841.80 = 395,675.16/x
  3. Step 3: Cross multiply
    718,029.24x = 990,841.80 × 395,675.16
  4. Step 4: Simplify right side
    718,029.24x = 392,051,487,749.69
  5. Step 5: Solve for x
    x = 392,051,487,749.69/718,029.24
  6. Step 6: Final answer
    x = 546,010.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.