Home / 989,743.20-1,483,630.65-456,333.90

Finding the Fourth Proportional to 989,743.20, 1,483,630.65 and 456,333.90

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Solution

The fourth proportional to 989,743.20, 1,483,630.65 and 456,333.90 is: 684,047.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,743.20 : 1,483,630.65 = 456,333.90 : x
  2. Step 2: Convert to fraction form
    989,743.20/1,483,630.65 = 456,333.90/x
  3. Step 3: Cross multiply
    989,743.20x = 1,483,630.65 × 456,333.90
  4. Step 4: Simplify right side
    989,743.20x = 677,030,960,674.04
  5. Step 5: Solve for x
    x = 677,030,960,674.04/989,743.20
  6. Step 6: Final answer
    x = 684,047.09

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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.