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Finding the Fourth Proportional to 556,276.55, 767,676.78 and 314,595.27

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Solution

The fourth proportional to 556,276.55, 767,676.78 and 314,595.27 is: 434,150.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,276.55 : 767,676.78 = 314,595.27 : x
  2. Step 2: Convert to fraction form
    556,276.55/767,676.78 = 314,595.27/x
  3. Step 3: Cross multiply
    556,276.55x = 767,676.78 × 314,595.27
  4. Step 4: Simplify right side
    556,276.55x = 241,507,483,876.83
  5. Step 5: Solve for x
    x = 241,507,483,876.83/556,276.55
  6. Step 6: Final answer
    x = 434,150.04

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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.