Home / 790,503.30-1,185,090.48-640,371.29

Finding the Fourth Proportional to 790,503.30, 1,185,090.48 and 640,371.29

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Solution

The fourth proportional to 790,503.30, 1,185,090.48 and 640,371.29 is: 960,018.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,503.30 : 1,185,090.48 = 640,371.29 : x
  2. Step 2: Convert to fraction form
    790,503.30/1,185,090.48 = 640,371.29/x
  3. Step 3: Cross multiply
    790,503.30x = 1,185,090.48 × 640,371.29
  4. Step 4: Simplify right side
    790,503.30x = 758,897,913,518.87
  5. Step 5: Solve for x
    x = 758,897,913,518.87/790,503.30
  6. Step 6: Final answer
    x = 960,018.65

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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.