Home / 989,922.18-1,485,044.10-306,649.47

Finding the Fourth Proportional to 989,922.18, 1,485,044.10 and 306,649.47

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Solution

The fourth proportional to 989,922.18, 1,485,044.10 and 306,649.47 is: 460,024.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,922.18 : 1,485,044.10 = 306,649.47 : x
  2. Step 2: Convert to fraction form
    989,922.18/1,485,044.10 = 306,649.47/x
  3. Step 3: Cross multiply
    989,922.18x = 1,485,044.10 × 306,649.47
  4. Step 4: Simplify right side
    989,922.18x = 455,387,986,191.63
  5. Step 5: Solve for x
    x = 455,387,986,191.63/989,922.18
  6. Step 6: Final answer
    x = 460,024.03

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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.