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Finding the Fourth Proportional to 507,787.80, 700,428.51 and 326,734.98

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Solution

The fourth proportional to 507,787.80, 700,428.51 and 326,734.98 is: 450,689.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,787.80 : 700,428.51 = 326,734.98 : x
  2. Step 2: Convert to fraction form
    507,787.80/700,428.51 = 326,734.98/x
  3. Step 3: Cross multiply
    507,787.80x = 700,428.51 × 326,734.98
  4. Step 4: Simplify right side
    507,787.80x = 228,854,495,206.28
  5. Step 5: Solve for x
    x = 228,854,495,206.28/507,787.80
  6. Step 6: Final answer
    x = 450,689.24

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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.