Home / 709,620.30-1,064,102.40-310,055.40

Finding the Fourth Proportional to 709,620.30, 1,064,102.40 and 310,055.40

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Solution

The fourth proportional to 709,620.30, 1,064,102.40 and 310,055.40 is: 464,939.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,620.30 : 1,064,102.40 = 310,055.40 : x
  2. Step 2: Convert to fraction form
    709,620.30/1,064,102.40 = 310,055.40/x
  3. Step 3: Cross multiply
    709,620.30x = 1,064,102.40 × 310,055.40
  4. Step 4: Simplify right side
    709,620.30x = 329,930,695,272.96
  5. Step 5: Solve for x
    x = 329,930,695,272.96/709,620.30
  6. Step 6: Final answer
    x = 464,939.76

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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.