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Finding the Fourth Proportional to 526,575.80, 788,697.30 and 210,870.20

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Solution

The fourth proportional to 526,575.80, 788,697.30 and 210,870.20 is: 315,838.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,575.80 : 788,697.30 = 210,870.20 : x
  2. Step 2: Convert to fraction form
    526,575.80/788,697.30 = 210,870.20/x
  3. Step 3: Cross multiply
    526,575.80x = 788,697.30 × 210,870.20
  4. Step 4: Simplify right side
    526,575.80x = 166,312,757,390.46
  5. Step 5: Solve for x
    x = 166,312,757,390.46/526,575.80
  6. Step 6: Final answer
    x = 315,838.21

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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.