Home / 875,111.20-1,312,666.80-314,072.80

Finding the Fourth Proportional to 875,111.20, 1,312,666.80 and 314,072.80

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Solution

The fourth proportional to 875,111.20, 1,312,666.80 and 314,072.80 is: 471,109.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,111.20 : 1,312,666.80 = 314,072.80 : x
  2. Step 2: Convert to fraction form
    875,111.20/1,312,666.80 = 314,072.80/x
  3. Step 3: Cross multiply
    875,111.20x = 1,312,666.80 × 314,072.80
  4. Step 4: Simplify right side
    875,111.20x = 412,272,937,343.04
  5. Step 5: Solve for x
    x = 412,272,937,343.04/875,111.20
  6. Step 6: Final answer
    x = 471,109.20

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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.