Home / 1,316,292.75-1,974,439.14-319,020.75

Finding the Fourth Proportional to 1,316,292.75, 1,974,439.14 and 319,020.75

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Solution

The fourth proportional to 1,316,292.75, 1,974,439.14 and 319,020.75 is: 478,531.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,292.75 : 1,974,439.14 = 319,020.75 : x
  2. Step 2: Convert to fraction form
    1,316,292.75/1,974,439.14 = 319,020.75/x
  3. Step 3: Cross multiply
    1,316,292.75x = 1,974,439.14 × 319,020.75
  4. Step 4: Simplify right side
    1,316,292.75x = 629,887,055,272.16
  5. Step 5: Solve for x
    x = 629,887,055,272.16/1,316,292.75
  6. Step 6: Final answer
    x = 478,531.13

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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.