Home / 1,316,278.69-1,974,418.07-319,006.69

Finding the Fourth Proportional to 1,316,278.69, 1,974,418.07 and 319,006.69

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Solution

The fourth proportional to 1,316,278.69, 1,974,418.07 and 319,006.69 is: 478,510.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,278.69 : 1,974,418.07 = 319,006.69 : x
  2. Step 2: Convert to fraction form
    1,316,278.69/1,974,418.07 = 319,006.69/x
  3. Step 3: Cross multiply
    1,316,278.69x = 1,974,418.07 × 319,006.69
  4. Step 4: Simplify right side
    1,316,278.69x = 629,852,566,655.81
  5. Step 5: Solve for x
    x = 629,852,566,655.81/1,316,278.69
  6. Step 6: Final answer
    x = 478,510.04

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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.