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Finding the Fourth Proportional to 526,206.80, 788,791.80 and 260,008.40

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Solution

The fourth proportional to 526,206.80, 788,791.80 and 260,008.40 is: 389,756.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,206.80 : 788,791.80 = 260,008.40 : x
  2. Step 2: Convert to fraction form
    526,206.80/788,791.80 = 260,008.40/x
  3. Step 3: Cross multiply
    526,206.80x = 788,791.80 × 260,008.40
  4. Step 4: Simplify right side
    526,206.80x = 205,092,493,851.12
  5. Step 5: Solve for x
    x = 205,092,493,851.12/526,206.80
  6. Step 6: Final answer
    x = 389,756.45

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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.