Home / 989,112.49-1,483,652.52-315,184.59

Finding the Fourth Proportional to 989,112.49, 1,483,652.52 and 315,184.59

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Solution

The fourth proportional to 989,112.49, 1,483,652.52 and 315,184.59 is: 472,771.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,112.49 : 1,483,652.52 = 315,184.59 : x
  2. Step 2: Convert to fraction form
    989,112.49/1,483,652.52 = 315,184.59/x
  3. Step 3: Cross multiply
    989,112.49x = 1,483,652.52 × 315,184.59
  4. Step 4: Simplify right side
    989,112.49x = 467,624,411,218.67
  5. Step 5: Solve for x
    x = 467,624,411,218.67/989,112.49
  6. Step 6: Final answer
    x = 472,771.72

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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.