Home / 646,166.09-891,792.77-370,631.45

Finding the Fourth Proportional to 646,166.09, 891,792.77 and 370,631.45

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Solution

The fourth proportional to 646,166.09, 891,792.77 and 370,631.45 is: 511,519.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,166.09 : 891,792.77 = 370,631.45 : x
  2. Step 2: Convert to fraction form
    646,166.09/891,792.77 = 370,631.45/x
  3. Step 3: Cross multiply
    646,166.09x = 891,792.77 × 370,631.45
  4. Step 4: Simplify right side
    646,166.09x = 330,526,441,132.50
  5. Step 5: Solve for x
    x = 330,526,441,132.50/646,166.09
  6. Step 6: Final answer
    x = 511,519.33

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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.