Home / 1,280,388.06-1,921,098.47-569,930.18

Finding the Fourth Proportional to 1,280,388.06, 1,921,098.47 and 569,930.18

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Solution

The fourth proportional to 1,280,388.06, 1,921,098.47 and 569,930.18 is: 855,125.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,388.06 : 1,921,098.47 = 569,930.18 : x
  2. Step 2: Convert to fraction form
    1,280,388.06/1,921,098.47 = 569,930.18/x
  3. Step 3: Cross multiply
    1,280,388.06x = 1,921,098.47 × 569,930.18
  4. Step 4: Simplify right side
    1,280,388.06x = 1,094,891,984,349.68
  5. Step 5: Solve for x
    x = 1,094,891,984,349.68/1,280,388.06
  6. Step 6: Final answer
    x = 855,125.11

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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.