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Finding the Fourth Proportional to 623,774, 860,807.50 and 337,293.40

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Solution

The fourth proportional to 623,774, 860,807.50 and 337,293.40 is: 465,464.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,774 : 860,807.50 = 337,293.40 : x
  2. Step 2: Convert to fraction form
    623,774/860,807.50 = 337,293.40/x
  3. Step 3: Cross multiply
    623,774x = 860,807.50 × 337,293.40
  4. Step 4: Simplify right side
    623,774x = 290,344,688,420.50
  5. Step 5: Solve for x
    x = 290,344,688,420.50/623,774
  6. Step 6: Final answer
    x = 465,464.56

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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.