Home / 1,272,319.59-1,908,478.17-325,688.79

Finding the Fourth Proportional to 1,272,319.59, 1,908,478.17 and 325,688.79

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Solution

The fourth proportional to 1,272,319.59, 1,908,478.17 and 325,688.79 is: 488,532.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,319.59 : 1,908,478.17 = 325,688.79 : x
  2. Step 2: Convert to fraction form
    1,272,319.59/1,908,478.17 = 325,688.79/x
  3. Step 3: Cross multiply
    1,272,319.59x = 1,908,478.17 × 325,688.79
  4. Step 4: Simplify right side
    1,272,319.59x = 621,569,945,928.71
  5. Step 5: Solve for x
    x = 621,569,945,928.71/1,272,319.59
  6. Step 6: Final answer
    x = 488,532.87

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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.