Home / 986,649.18-1,479,842.31-312,798.60

Finding the Fourth Proportional to 986,649.18, 1,479,842.31 and 312,798.60

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Solution

The fourth proportional to 986,649.18, 1,479,842.31 and 312,798.60 is: 469,156.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,649.18 : 1,479,842.31 = 312,798.60 : x
  2. Step 2: Convert to fraction form
    986,649.18/1,479,842.31 = 312,798.60/x
  3. Step 3: Cross multiply
    986,649.18x = 1,479,842.31 × 312,798.60
  4. Step 4: Simplify right side
    986,649.18x = 462,892,602,788.77
  5. Step 5: Solve for x
    x = 462,892,602,788.77/986,649.18
  6. Step 6: Final answer
    x = 469,156.22

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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.