Home / 1,685,130.80-2,325,481.08-921,184.16

Finding the Fourth Proportional to 1,685,130.80, 2,325,481.08 and 921,184.16

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Solution

The fourth proportional to 1,685,130.80, 2,325,481.08 and 921,184.16 is: 1,271,234.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685,130.80 : 2,325,481.08 = 921,184.16 : x
  2. Step 2: Convert to fraction form
    1,685,130.80/2,325,481.08 = 921,184.16/x
  3. Step 3: Cross multiply
    1,685,130.80x = 2,325,481.08 × 921,184.16
  4. Step 4: Simplify right side
    1,685,130.80x = 2,142,196,335,275.69
  5. Step 5: Solve for x
    x = 2,142,196,335,275.69/1,685,130.80
  6. Step 6: Final answer
    x = 1,271,234.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.