Home / 662,890.10-993,314.55-493,616.30

Finding the Fourth Proportional to 662,890.10, 993,314.55 and 493,616.30

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Solution

The fourth proportional to 662,890.10, 993,314.55 and 493,616.30 is: 739,664.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,890.10 : 993,314.55 = 493,616.30 : x
  2. Step 2: Convert to fraction form
    662,890.10/993,314.55 = 493,616.30/x
  3. Step 3: Cross multiply
    662,890.10x = 993,314.55 × 493,616.30
  4. Step 4: Simplify right side
    662,890.10x = 490,316,252,907.17
  5. Step 5: Solve for x
    x = 490,316,252,907.17/662,890.10
  6. Step 6: Final answer
    x = 739,664.47

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Double scale
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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.