Home / 879,797.30-1,214,145.86-497,815.88

Finding the Fourth Proportional to 879,797.30, 1,214,145.86 and 497,815.88

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Solution

The fourth proportional to 879,797.30, 1,214,145.86 and 497,815.88 is: 687,000.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,797.30 : 1,214,145.86 = 497,815.88 : x
  2. Step 2: Convert to fraction form
    879,797.30/1,214,145.86 = 497,815.88/x
  3. Step 3: Cross multiply
    879,797.30x = 1,214,145.86 × 497,815.88
  4. Step 4: Simplify right side
    879,797.30x = 604,421,081,184.45
  5. Step 5: Solve for x
    x = 604,421,081,184.45/879,797.30
  6. Step 6: Final answer
    x = 687,000.39

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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.