Home / 939,855.12-1,297,001.39-510,135.35

Finding the Fourth Proportional to 939,855.12, 1,297,001.39 and 510,135.35

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Solution

The fourth proportional to 939,855.12, 1,297,001.39 and 510,135.35 is: 703,987.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,855.12 : 1,297,001.39 = 510,135.35 : x
  2. Step 2: Convert to fraction form
    939,855.12/1,297,001.39 = 510,135.35/x
  3. Step 3: Cross multiply
    939,855.12x = 1,297,001.39 × 510,135.35
  4. Step 4: Simplify right side
    939,855.12x = 661,646,249,002.45
  5. Step 5: Solve for x
    x = 661,646,249,002.45/939,855.12
  6. Step 6: Final answer
    x = 703,987.49

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1.5x scale

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.