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Finding the Fourth Proportional to 435,506.40, 654,037.20 and 317,311.20

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Solution

The fourth proportional to 435,506.40, 654,037.20 and 317,311.20 is: 476,533.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,506.40 : 654,037.20 = 317,311.20 : x
  2. Step 2: Convert to fraction form
    435,506.40/654,037.20 = 317,311.20/x
  3. Step 3: Cross multiply
    435,506.40x = 654,037.20 × 317,311.20
  4. Step 4: Simplify right side
    435,506.40x = 207,533,328,776.64
  5. Step 5: Solve for x
    x = 207,533,328,776.64/435,506.40
  6. Step 6: Final answer
    x = 476,533.36

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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.