Home / 730,985.58-1,008,781.09-408,696.50

Finding the Fourth Proportional to 730,985.58, 1,008,781.09 and 408,696.50

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Solution

The fourth proportional to 730,985.58, 1,008,781.09 and 408,696.50 is: 564,012.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,985.58 : 1,008,781.09 = 408,696.50 : x
  2. Step 2: Convert to fraction form
    730,985.58/1,008,781.09 = 408,696.50/x
  3. Step 3: Cross multiply
    730,985.58x = 1,008,781.09 × 408,696.50
  4. Step 4: Simplify right side
    730,985.58x = 412,285,302,249.40
  5. Step 5: Solve for x
    x = 412,285,302,249.40/730,985.58
  6. Step 6: Final answer
    x = 564,012.91

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1.5x scale

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.