Home / 1,685,739.40-2,528,609.10-487,700.80

Finding the Fourth Proportional to 1,685,739.40, 2,528,609.10 and 487,700.80

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Solution

The fourth proportional to 1,685,739.40, 2,528,609.10 and 487,700.80 is: 731,551.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685,739.40 : 2,528,609.10 = 487,700.80 : x
  2. Step 2: Convert to fraction form
    1,685,739.40/2,528,609.10 = 487,700.80/x
  3. Step 3: Cross multiply
    1,685,739.40x = 2,528,609.10 × 487,700.80
  4. Step 4: Simplify right side
    1,685,739.40x = 1,233,204,680,957.28
  5. Step 5: Solve for x
    x = 1,233,204,680,957.28/1,685,739.40
  6. Step 6: Final answer
    x = 731,551.20

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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.