Home / 709,611.36-1,064,042.50-309,784.02

Finding the Fourth Proportional to 709,611.36, 1,064,042.50 and 309,784.02

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Solution

The fourth proportional to 709,611.36, 1,064,042.50 and 309,784.02 is: 464,512.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,611.36 : 1,064,042.50 = 309,784.02 : x
  2. Step 2: Convert to fraction form
    709,611.36/1,064,042.50 = 309,784.02/x
  3. Step 3: Cross multiply
    709,611.36x = 1,064,042.50 × 309,784.02
  4. Step 4: Simplify right side
    709,611.36x = 329,623,363,100.85
  5. Step 5: Solve for x
    x = 329,623,363,100.85/709,611.36
  6. Step 6: Final answer
    x = 464,512.52

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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.