Home / 879,798.30-1,214,147.24-497,816.88

Finding the Fourth Proportional to 879,798.30, 1,214,147.24 and 497,816.88

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Solution

The fourth proportional to 879,798.30, 1,214,147.24 and 497,816.88 is: 687,001.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,798.30 : 1,214,147.24 = 497,816.88 : x
  2. Step 2: Convert to fraction form
    879,798.30/1,214,147.24 = 497,816.88/x
  3. Step 3: Cross multiply
    879,798.30x = 1,214,147.24 × 497,816.88
  4. Step 4: Simplify right side
    879,798.30x = 604,422,990,877.41
  5. Step 5: Solve for x
    x = 604,422,990,877.41/879,798.30
  6. Step 6: Final answer
    x = 687,001.77

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Double scale
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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.