Home / 520,416.06-718,175.37-290,981.58

Finding the Fourth Proportional to 520,416.06, 718,175.37 and 290,981.58

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Solution

The fourth proportional to 520,416.06, 718,175.37 and 290,981.58 is: 401,555.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,416.06 : 718,175.37 = 290,981.58 : x
  2. Step 2: Convert to fraction form
    520,416.06/718,175.37 = 290,981.58/x
  3. Step 3: Cross multiply
    520,416.06x = 718,175.37 × 290,981.58
  4. Step 4: Simplify right side
    520,416.06x = 208,975,803,879.69
  5. Step 5: Solve for x
    x = 208,975,803,879.69/520,416.06
  6. Step 6: Final answer
    x = 401,555.26

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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.