Home / 779,978.24-1,170,038.76-219,008.96

Finding the Fourth Proportional to 779,978.24, 1,170,038.76 and 219,008.96

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Solution

The fourth proportional to 779,978.24, 1,170,038.76 and 219,008.96 is: 328,533.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,978.24 : 1,170,038.76 = 219,008.96 : x
  2. Step 2: Convert to fraction form
    779,978.24/1,170,038.76 = 219,008.96/x
  3. Step 3: Cross multiply
    779,978.24x = 1,170,038.76 × 219,008.96
  4. Step 4: Simplify right side
    779,978.24x = 256,248,971,987.29
  5. Step 5: Solve for x
    x = 256,248,971,987.29/779,978.24
  6. Step 6: Final answer
    x = 328,533.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.