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Finding the Fourth Proportional to 606.10, 909.15 and 526.90

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Solution

The fourth proportional to 606.10, 909.15 and 526.90 is: 790.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.10 : 909.15 = 526.90 : x
  2. Step 2: Convert to fraction form
    606.10/909.15 = 526.90/x
  3. Step 3: Cross multiply
    606.10x = 909.15 × 526.90
  4. Step 4: Simplify right side
    606.10x = 479,031.14
  5. Step 5: Solve for x
    x = 479,031.14/606.10
  6. Step 6: Final answer
    x = 790.35

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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.