Home / 1,314,574.80-1,971,855.80-515,291.60

Finding the Fourth Proportional to 1,314,574.80, 1,971,855.80 and 515,291.60

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Solution

The fourth proportional to 1,314,574.80, 1,971,855.80 and 515,291.60 is: 772,934.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,574.80 : 1,971,855.80 = 515,291.60 : x
  2. Step 2: Convert to fraction form
    1,314,574.80/1,971,855.80 = 515,291.60/x
  3. Step 3: Cross multiply
    1,314,574.80x = 1,971,855.80 × 515,291.60
  4. Step 4: Simplify right side
    1,314,574.80x = 1,016,080,730,151.28
  5. Step 5: Solve for x
    x = 1,016,080,730,151.28/1,314,574.80
  6. Step 6: Final answer
    x = 772,934.89

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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.