Home / 991,071.06-1,486,828.14-317,192.76

Finding the Fourth Proportional to 991,071.06, 1,486,828.14 and 317,192.76

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Solution

The fourth proportional to 991,071.06, 1,486,828.14 and 317,192.76 is: 475,860.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,071.06 : 1,486,828.14 = 317,192.76 : x
  2. Step 2: Convert to fraction form
    991,071.06/1,486,828.14 = 317,192.76/x
  3. Step 3: Cross multiply
    991,071.06x = 1,486,828.14 × 317,192.76
  4. Step 4: Simplify right side
    991,071.06x = 471,611,121,372.27
  5. Step 5: Solve for x
    x = 471,611,121,372.27/991,071.06
  6. Step 6: Final answer
    x = 475,860.05

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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.