Home / 1,284,926.72-1,927,215.12-338,218.16

Finding the Fourth Proportional to 1,284,926.72, 1,927,215.12 and 338,218.16

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Solution

The fourth proportional to 1,284,926.72, 1,927,215.12 and 338,218.16 is: 507,281.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,926.72 : 1,927,215.12 = 338,218.16 : x
  2. Step 2: Convert to fraction form
    1,284,926.72/1,927,215.12 = 338,218.16/x
  3. Step 3: Cross multiply
    1,284,926.72x = 1,927,215.12 × 338,218.16
  4. Step 4: Simplify right side
    1,284,926.72x = 651,819,151,810.58
  5. Step 5: Solve for x
    x = 651,819,151,810.58/1,284,926.72
  6. Step 6: Final answer
    x = 507,281.19

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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.