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Finding the Fourth Proportional to 500,173.74, 750,259.48 and 386,486.88

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Solution

The fourth proportional to 500,173.74, 750,259.48 and 386,486.88 is: 579,729.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,173.74 : 750,259.48 = 386,486.88 : x
  2. Step 2: Convert to fraction form
    500,173.74/750,259.48 = 386,486.88/x
  3. Step 3: Cross multiply
    500,173.74x = 750,259.48 × 386,486.88
  4. Step 4: Simplify right side
    500,173.74x = 289,965,445,615.62
  5. Step 5: Solve for x
    x = 289,965,445,615.62/500,173.74
  6. Step 6: Final answer
    x = 579,729.45

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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.