Home / 1,316,328.52-1,974,492.80-319,056.52

Finding the Fourth Proportional to 1,316,328.52, 1,974,492.80 and 319,056.52

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Solution

The fourth proportional to 1,316,328.52, 1,974,492.80 and 319,056.52 is: 478,584.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,328.52 : 1,974,492.80 = 319,056.52 : x
  2. Step 2: Convert to fraction form
    1,316,328.52/1,974,492.80 = 319,056.52/x
  3. Step 3: Cross multiply
    1,316,328.52x = 1,974,492.80 × 319,056.52
  4. Step 4: Simplify right side
    1,316,328.52x = 629,974,801,533.06
  5. Step 5: Solve for x
    x = 629,974,801,533.06/1,316,328.52
  6. Step 6: Final answer
    x = 478,584.78

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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.