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Finding the Fourth Proportional to 525,179.40, 788,690.70 and 508,590.60

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Solution

The fourth proportional to 525,179.40, 788,690.70 and 508,590.60 is: 763,778.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,179.40 : 788,690.70 = 508,590.60 : x
  2. Step 2: Convert to fraction form
    525,179.40/788,690.70 = 508,590.60/x
  3. Step 3: Cross multiply
    525,179.40x = 788,690.70 × 508,590.60
  4. Step 4: Simplify right side
    525,179.40x = 401,120,676,327.42
  5. Step 5: Solve for x
    x = 401,120,676,327.42/525,179.40
  6. Step 6: Final answer
    x = 763,778.39

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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.