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Finding the Fourth Proportional to 556,679.31, 768,217.50 and 302,030.52

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Solution

The fourth proportional to 556,679.31, 768,217.50 and 302,030.52 is: 416,802.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,679.31 : 768,217.50 = 302,030.52 : x
  2. Step 2: Convert to fraction form
    556,679.31/768,217.50 = 302,030.52/x
  3. Step 3: Cross multiply
    556,679.31x = 768,217.50 × 302,030.52
  4. Step 4: Simplify right side
    556,679.31x = 232,025,130,998.10
  5. Step 5: Solve for x
    x = 232,025,130,998.10/556,679.31
  6. Step 6: Final answer
    x = 416,802.15

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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.