Home / 979,842.39-1,352,203.88-538,322.66

Finding the Fourth Proportional to 979,842.39, 1,352,203.88 and 538,322.66

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Solution

The fourth proportional to 979,842.39, 1,352,203.88 and 538,322.66 is: 742,897.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,842.39 : 1,352,203.88 = 538,322.66 : x
  2. Step 2: Convert to fraction form
    979,842.39/1,352,203.88 = 538,322.66/x
  3. Step 3: Cross multiply
    979,842.39x = 1,352,203.88 × 538,322.66
  4. Step 4: Simplify right side
    979,842.39x = 727,921,985,162.05
  5. Step 5: Solve for x
    x = 727,921,985,162.05/979,842.39
  6. Step 6: Final answer
    x = 742,897.02

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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.