Home / 1,286,281.09-1,929,437.93-487,348.03

Finding the Fourth Proportional to 1,286,281.09, 1,929,437.93 and 487,348.03

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Solution

The fourth proportional to 1,286,281.09, 1,929,437.93 and 487,348.03 is: 731,028.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,281.09 : 1,929,437.93 = 487,348.03 : x
  2. Step 2: Convert to fraction form
    1,286,281.09/1,929,437.93 = 487,348.03/x
  3. Step 3: Cross multiply
    1,286,281.09x = 1,929,437.93 × 487,348.03
  4. Step 4: Simplify right side
    1,286,281.09x = 940,307,774,192.78
  5. Step 5: Solve for x
    x = 940,307,774,192.78/1,286,281.09
  6. Step 6: Final answer
    x = 731,028.22

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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.