Home / 1,097,316.80-1,645,975.20-387,339.20

Finding the Fourth Proportional to 1,097,316.80, 1,645,975.20 and 387,339.20

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Solution

The fourth proportional to 1,097,316.80, 1,645,975.20 and 387,339.20 is: 581,008.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097,316.80 : 1,645,975.20 = 387,339.20 : x
  2. Step 2: Convert to fraction form
    1,097,316.80/1,645,975.20 = 387,339.20/x
  3. Step 3: Cross multiply
    1,097,316.80x = 1,645,975.20 × 387,339.20
  4. Step 4: Simplify right side
    1,097,316.80x = 637,550,717,187.84
  5. Step 5: Solve for x
    x = 637,550,717,187.84/1,097,316.80
  6. Step 6: Final answer
    x = 581,008.80

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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.