Home / 865,201.10-1,297,801.65-510,907.10

Finding the Fourth Proportional to 865,201.10, 1,297,801.65 and 510,907.10

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Solution

The fourth proportional to 865,201.10, 1,297,801.65 and 510,907.10 is: 766,360.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,201.10 : 1,297,801.65 = 510,907.10 : x
  2. Step 2: Convert to fraction form
    865,201.10/1,297,801.65 = 510,907.10/x
  3. Step 3: Cross multiply
    865,201.10x = 1,297,801.65 × 510,907.10
  4. Step 4: Simplify right side
    865,201.10x = 663,056,077,376.72
  5. Step 5: Solve for x
    x = 663,056,077,376.72/865,201.10
  6. Step 6: Final answer
    x = 766,360.65

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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.