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Finding the Fourth Proportional to 562,539.67, 776,304.75 and 307,890.86

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Solution

The fourth proportional to 562,539.67, 776,304.75 and 307,890.86 is: 424,889.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,539.67 : 776,304.75 = 307,890.86 : x
  2. Step 2: Convert to fraction form
    562,539.67/776,304.75 = 307,890.86/x
  3. Step 3: Cross multiply
    562,539.67x = 776,304.75 × 307,890.86
  4. Step 4: Simplify right side
    562,539.67x = 239,017,137,099.59
  5. Step 5: Solve for x
    x = 239,017,137,099.59/562,539.67
  6. Step 6: Final answer
    x = 424,889.39

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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.