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Finding the Fourth Proportional to 525,290.40, 788,857.20 and 508,701.60

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Solution

The fourth proportional to 525,290.40, 788,857.20 and 508,701.60 is: 763,944.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,290.40 : 788,857.20 = 508,701.60 : x
  2. Step 2: Convert to fraction form
    525,290.40/788,857.20 = 508,701.60/x
  3. Step 3: Cross multiply
    525,290.40x = 788,857.20 × 508,701.60
  4. Step 4: Simplify right side
    525,290.40x = 401,292,919,811.52
  5. Step 5: Solve for x
    x = 401,292,919,811.52/525,290.40
  6. Step 6: Final answer
    x = 763,944.90

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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.