Home / 671,916.40-1,008,166.20-339,492.40

Finding the Fourth Proportional to 671,916.40, 1,008,166.20 and 339,492.40

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Solution

The fourth proportional to 671,916.40, 1,008,166.20 and 339,492.40 is: 509,385.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,916.40 : 1,008,166.20 = 339,492.40 : x
  2. Step 2: Convert to fraction form
    671,916.40/1,008,166.20 = 339,492.40/x
  3. Step 3: Cross multiply
    671,916.40x = 1,008,166.20 × 339,492.40
  4. Step 4: Simplify right side
    671,916.40x = 342,264,762,836.88
  5. Step 5: Solve for x
    x = 342,264,762,836.88/671,916.40
  6. Step 6: Final answer
    x = 509,385.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.