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Finding the Fourth Proportional to 563,026.76, 776,989.52 and 321,304.52

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Solution

The fourth proportional to 563,026.76, 776,989.52 and 321,304.52 is: 443,407.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,026.76 : 776,989.52 = 321,304.52 : x
  2. Step 2: Convert to fraction form
    563,026.76/776,989.52 = 321,304.52/x
  3. Step 3: Cross multiply
    563,026.76x = 776,989.52 × 321,304.52
  4. Step 4: Simplify right side
    563,026.76x = 249,650,244,768.63
  5. Step 5: Solve for x
    x = 249,650,244,768.63/563,026.76
  6. Step 6: Final answer
    x = 443,407.42

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1.5x scale

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.