Home / 788,687.10-1,183,030.65-339,623.10

Finding the Fourth Proportional to 788,687.10, 1,183,030.65 and 339,623.10

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Solution

The fourth proportional to 788,687.10, 1,183,030.65 and 339,623.10 is: 509,434.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,687.10 : 1,183,030.65 = 339,623.10 : x
  2. Step 2: Convert to fraction form
    788,687.10/1,183,030.65 = 339,623.10/x
  3. Step 3: Cross multiply
    788,687.10x = 1,183,030.65 × 339,623.10
  4. Step 4: Simplify right side
    788,687.10x = 401,784,536,748.02
  5. Step 5: Solve for x
    x = 401,784,536,748.02/788,687.10
  6. Step 6: Final answer
    x = 509,434.65

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Half scale
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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.