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Finding the Fourth Proportional to 898,421.85, 1,347,140.70 and 365,340.60

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Solution

The fourth proportional to 898,421.85, 1,347,140.70 and 365,340.60 is: 547,810.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,421.85 : 1,347,140.70 = 365,340.60 : x
  2. Step 2: Convert to fraction form
    898,421.85/1,347,140.70 = 365,340.60/x
  3. Step 3: Cross multiply
    898,421.85x = 1,347,140.70 × 365,340.60
  4. Step 4: Simplify right side
    898,421.85x = 492,165,191,622.42
  5. Step 5: Solve for x
    x = 492,165,191,622.42/898,421.85
  6. Step 6: Final answer
    x = 547,810.80

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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.