Home / 989,814.20-1,483,737.15-456,404.90

Finding the Fourth Proportional to 989,814.20, 1,483,737.15 and 456,404.90

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Solution

The fourth proportional to 989,814.20, 1,483,737.15 and 456,404.90 is: 684,153.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,814.20 : 1,483,737.15 = 456,404.90 : x
  2. Step 2: Convert to fraction form
    989,814.20/1,483,737.15 = 456,404.90/x
  3. Step 3: Cross multiply
    989,814.20x = 1,483,737.15 × 456,404.90
  4. Step 4: Simplify right side
    989,814.20x = 677,184,905,572.04
  5. Step 5: Solve for x
    x = 677,184,905,572.04/989,814.20
  6. Step 6: Final answer
    x = 684,153.56

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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.