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Finding the Fourth Proportional to 556,120.28, 767,416.14 and 314,388.44

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Solution

The fourth proportional to 556,120.28, 767,416.14 and 314,388.44 is: 433,839.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,120.28 : 767,416.14 = 314,388.44 : x
  2. Step 2: Convert to fraction form
    556,120.28/767,416.14 = 314,388.44/x
  3. Step 3: Cross multiply
    556,120.28x = 767,416.14 × 314,388.44
  4. Step 4: Simplify right side
    556,120.28x = 241,266,763,085.42
  5. Step 5: Solve for x
    x = 241,266,763,085.42/556,120.28
  6. Step 6: Final answer
    x = 433,839.17

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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.