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Finding the Fourth Proportional to 617,916.60, 926,874.90 and 477,948.60

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Solution

The fourth proportional to 617,916.60, 926,874.90 and 477,948.60 is: 716,922.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,916.60 : 926,874.90 = 477,948.60 : x
  2. Step 2: Convert to fraction form
    617,916.60/926,874.90 = 477,948.60/x
  3. Step 3: Cross multiply
    617,916.60x = 926,874.90 × 477,948.60
  4. Step 4: Simplify right side
    617,916.60x = 442,998,560,830.14
  5. Step 5: Solve for x
    x = 442,998,560,830.14/617,916.60
  6. Step 6: Final answer
    x = 716,922.90

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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.