Home / 879,480.53-1,213,687.62-497,499.11

Finding the Fourth Proportional to 879,480.53, 1,213,687.62 and 497,499.11

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Solution

The fourth proportional to 879,480.53, 1,213,687.62 and 497,499.11 is: 686,551.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,480.53 : 1,213,687.62 = 497,499.11 : x
  2. Step 2: Convert to fraction form
    879,480.53/1,213,687.62 = 497,499.11/x
  3. Step 3: Cross multiply
    879,480.53x = 1,213,687.62 × 497,499.11
  4. Step 4: Simplify right side
    879,480.53x = 603,808,510,768.02
  5. Step 5: Solve for x
    x = 603,808,510,768.02/879,480.53
  6. Step 6: Final answer
    x = 686,551.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.