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Finding the Fourth Proportional to 513,000.06, 707,925.60 and 286,645.56

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Solution

The fourth proportional to 513,000.06, 707,925.60 and 286,645.56 is: 395,562.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,000.06 : 707,925.60 = 286,645.56 : x
  2. Step 2: Convert to fraction form
    513,000.06/707,925.60 = 286,645.56/x
  3. Step 3: Cross multiply
    513,000.06x = 707,925.60 × 286,645.56
  4. Step 4: Simplify right side
    513,000.06x = 202,923,730,050.34
  5. Step 5: Solve for x
    x = 202,923,730,050.34/513,000.06
  6. Step 6: Final answer
    x = 395,562.78

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.