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Finding the Fourth Proportional to 521,703.10, 782,554.65 and 450,844.30

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Solution

The fourth proportional to 521,703.10, 782,554.65 and 450,844.30 is: 676,266.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,703.10 : 782,554.65 = 450,844.30 : x
  2. Step 2: Convert to fraction form
    521,703.10/782,554.65 = 450,844.30/x
  3. Step 3: Cross multiply
    521,703.10x = 782,554.65 × 450,844.30
  4. Step 4: Simplify right side
    521,703.10x = 352,810,303,391.00
  5. Step 5: Solve for x
    x = 352,810,303,391.00/521,703.10
  6. Step 6: Final answer
    x = 676,266.45

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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.