Home / 456,006.80-682,973.40-288,045.20

Finding the Fourth Proportional to 456,006.80, 682,973.40 and 288,045.20

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Solution

The fourth proportional to 456,006.80, 682,973.40 and 288,045.20 is: 431,412.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,006.80 : 682,973.40 = 288,045.20 : x
  2. Step 2: Convert to fraction form
    456,006.80/682,973.40 = 288,045.20/x
  3. Step 3: Cross multiply
    456,006.80x = 682,973.40 × 288,045.20
  4. Step 4: Simplify right side
    456,006.80x = 196,727,209,597.68
  5. Step 5: Solve for x
    x = 196,727,209,597.68/456,006.80
  6. Step 6: Final answer
    x = 431,412.89

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1.5x scale

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.