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Finding the Fourth Proportional to 556,351.54, 767,779.76 and 314,669.81

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Solution

The fourth proportional to 556,351.54, 767,779.76 and 314,669.81 is: 434,252.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,351.54 : 767,779.76 = 314,669.81 : x
  2. Step 2: Convert to fraction form
    556,351.54/767,779.76 = 314,669.81/x
  3. Step 3: Cross multiply
    556,351.54x = 767,779.76 × 314,669.81
  4. Step 4: Simplify right side
    556,351.54x = 241,597,113,907.17
  5. Step 5: Solve for x
    x = 241,597,113,907.17/556,351.54
  6. Step 6: Final answer
    x = 434,252.62

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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.