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Finding the Fourth Proportional to 646,010.06, 891,493.89 and 359,597.81

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Solution

The fourth proportional to 646,010.06, 891,493.89 and 359,597.81 is: 496,244.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,010.06 : 891,493.89 = 359,597.81 : x
  2. Step 2: Convert to fraction form
    646,010.06/891,493.89 = 359,597.81/x
  3. Step 3: Cross multiply
    646,010.06x = 891,493.89 × 359,597.81
  4. Step 4: Simplify right side
    646,010.06x = 320,579,246,337.97
  5. Step 5: Solve for x
    x = 320,579,246,337.97/646,010.06
  6. Step 6: Final answer
    x = 496,244.97

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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.