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Finding the Fourth Proportional to 556,903.68, 768,527.82 and 302,254.86

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Solution

The fourth proportional to 556,903.68, 768,527.82 and 302,254.86 is: 417,112.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,903.68 : 768,527.82 = 302,254.86 : x
  2. Step 2: Convert to fraction form
    556,903.68/768,527.82 = 302,254.86/x
  3. Step 3: Cross multiply
    556,903.68x = 768,527.82 × 302,254.86
  4. Step 4: Simplify right side
    556,903.68x = 232,291,268,640.21
  5. Step 5: Solve for x
    x = 232,291,268,640.21/556,903.68
  6. Step 6: Final answer
    x = 417,112.11

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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.