Home / 890,237.10-1,335,355.65-417,845.10

Finding the Fourth Proportional to 890,237.10, 1,335,355.65 and 417,845.10

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Solution

The fourth proportional to 890,237.10, 1,335,355.65 and 417,845.10 is: 626,767.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,237.10 : 1,335,355.65 = 417,845.10 : x
  2. Step 2: Convert to fraction form
    890,237.10/1,335,355.65 = 417,845.10/x
  3. Step 3: Cross multiply
    890,237.10x = 1,335,355.65 × 417,845.10
  4. Step 4: Simplify right side
    890,237.10x = 557,971,815,109.82
  5. Step 5: Solve for x
    x = 557,971,815,109.82/890,237.10
  6. Step 6: Final answer
    x = 626,767.65

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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.