Home / 879,723.40-1,213,985.20-497,758.44

Finding the Fourth Proportional to 879,723.40, 1,213,985.20 and 497,758.44

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Solution

The fourth proportional to 879,723.40, 1,213,985.20 and 497,758.44 is: 686,887.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,723.40 : 1,213,985.20 = 497,758.44 : x
  2. Step 2: Convert to fraction form
    879,723.40/1,213,985.20 = 497,758.44/x
  3. Step 3: Cross multiply
    879,723.40x = 1,213,985.20 × 497,758.44
  4. Step 4: Simplify right side
    879,723.40x = 604,271,379,335.09
  5. Step 5: Solve for x
    x = 604,271,379,335.09/879,723.40
  6. Step 6: Final answer
    x = 686,887.92

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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.