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Finding the Fourth Proportional to 527,602.15, 728,047.87 and 298,180.18

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Solution

The fourth proportional to 527,602.15, 728,047.87 and 298,180.18 is: 411,464.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,602.15 : 728,047.87 = 298,180.18 : x
  2. Step 2: Convert to fraction form
    527,602.15/728,047.87 = 298,180.18/x
  3. Step 3: Cross multiply
    527,602.15x = 728,047.87 × 298,180.18
  4. Step 4: Simplify right side
    527,602.15x = 217,089,444,925.22
  5. Step 5: Solve for x
    x = 217,089,444,925.22/527,602.15
  6. Step 6: Final answer
    x = 411,464.29

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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.