Home / 879,639.24-1,213,907.40-497,745.84

Finding the Fourth Proportional to 879,639.24, 1,213,907.40 and 497,745.84

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Solution

The fourth proportional to 879,639.24, 1,213,907.40 and 497,745.84 is: 686,892.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,639.24 : 1,213,907.40 = 497,745.84 : x
  2. Step 2: Convert to fraction form
    879,639.24/1,213,907.40 = 497,745.84/x
  3. Step 3: Cross multiply
    879,639.24x = 1,213,907.40 × 497,745.84
  4. Step 4: Simplify right side
    879,639.24x = 604,217,358,495.22
  5. Step 5: Solve for x
    x = 604,217,358,495.22/879,639.24
  6. Step 6: Final answer
    x = 686,892.23

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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.