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Finding the Fourth Proportional to 623,870.31, 860,943.62 and 337,390.40

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Solution

The fourth proportional to 623,870.31, 860,943.62 and 337,390.40 is: 465,600.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,870.31 : 860,943.62 = 337,390.40 : x
  2. Step 2: Convert to fraction form
    623,870.31/860,943.62 = 337,390.40/x
  3. Step 3: Cross multiply
    623,870.31x = 860,943.62 × 337,390.40
  4. Step 4: Simplify right side
    623,870.31x = 290,474,110,482.28
  5. Step 5: Solve for x
    x = 290,474,110,482.28/623,870.31
  6. Step 6: Final answer
    x = 465,600.15

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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.