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Finding the Fourth Proportional to 526,570.80, 788,689.80 and 210,865.20

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Solution

The fourth proportional to 526,570.80, 788,689.80 and 210,865.20 is: 315,830.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,570.80 : 788,689.80 = 210,865.20 : x
  2. Step 2: Convert to fraction form
    526,570.80/788,689.80 = 210,865.20/x
  3. Step 3: Cross multiply
    526,570.80x = 788,689.80 × 210,865.20
  4. Step 4: Simplify right side
    526,570.80x = 166,307,232,414.96
  5. Step 5: Solve for x
    x = 166,307,232,414.96/526,570.80
  6. Step 6: Final answer
    x = 315,830.72

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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.