Home / 556,921.56-768,531.20-302,267.28

Finding the Fourth Proportional to 556,921.56, 768,531.20 and 302,267.28

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Solution

The fourth proportional to 556,921.56, 768,531.20 and 302,267.28 is: 417,117.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,921.56 : 768,531.20 = 302,267.28 : x
  2. Step 2: Convert to fraction form
    556,921.56/768,531.20 = 302,267.28/x
  3. Step 3: Cross multiply
    556,921.56x = 768,531.20 × 302,267.28
  4. Step 4: Simplify right side
    556,921.56x = 232,301,833,907.80
  5. Step 5: Solve for x
    x = 232,301,833,907.80/556,921.56
  6. Step 6: Final answer
    x = 417,117.69

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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.