Home / 979,003.51-1,351,110.34-571,236.72

Finding the Fourth Proportional to 979,003.51, 1,351,110.34 and 571,236.72

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Solution

The fourth proportional to 979,003.51, 1,351,110.34 and 571,236.72 is: 788,356.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,003.51 : 1,351,110.34 = 571,236.72 : x
  2. Step 2: Convert to fraction form
    979,003.51/1,351,110.34 = 571,236.72/x
  3. Step 3: Cross multiply
    979,003.51x = 1,351,110.34 × 571,236.72
  4. Step 4: Simplify right side
    979,003.51x = 771,803,837,551.59
  5. Step 5: Solve for x
    x = 771,803,837,551.59/979,003.51
  6. Step 6: Final answer
    x = 788,356.56

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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.