Home / 1,272,030.89-1,908,036.61-325,400.09

Finding the Fourth Proportional to 1,272,030.89, 1,908,036.61 and 325,400.09

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Solution

The fourth proportional to 1,272,030.89, 1,908,036.61 and 325,400.09 is: 488,097.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,030.89 : 1,908,036.61 = 325,400.09 : x
  2. Step 2: Convert to fraction form
    1,272,030.89/1,908,036.61 = 325,400.09/x
  3. Step 3: Cross multiply
    1,272,030.89x = 1,908,036.61 × 325,400.09
  4. Step 4: Simplify right side
    1,272,030.89x = 620,875,274,263.61
  5. Step 5: Solve for x
    x = 620,875,274,263.61/1,272,030.89
  6. Step 6: Final answer
    x = 488,097.64

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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.