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Finding the Fourth Proportional to 522,111.10, 783,166.65 and 490,618.30

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Solution

The fourth proportional to 522,111.10, 783,166.65 and 490,618.30 is: 735,927.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,111.10 : 783,166.65 = 490,618.30 : x
  2. Step 2: Convert to fraction form
    522,111.10/783,166.65 = 490,618.30/x
  3. Step 3: Cross multiply
    522,111.10x = 783,166.65 × 490,618.30
  4. Step 4: Simplify right side
    522,111.10x = 384,235,890,439.70
  5. Step 5: Solve for x
    x = 384,235,890,439.70/522,111.10
  6. Step 6: Final answer
    x = 735,927.45

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Double scale
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Similar ratio
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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.