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Finding the Fourth Proportional to 1,298,225.60, 1,946,877.60 and 898,865.60

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Solution

The fourth proportional to 1,298,225.60, 1,946,877.60 and 898,865.60 is: 1,347,979.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,225.60 : 1,946,877.60 = 898,865.60 : x
  2. Step 2: Convert to fraction form
    1,298,225.60/1,946,877.60 = 898,865.60/x
  3. Step 3: Cross multiply
    1,298,225.60x = 1,946,877.60 × 898,865.60
  4. Step 4: Simplify right side
    1,298,225.60x = 1,749,981,302,050.56
  5. Step 5: Solve for x
    x = 1,749,981,302,050.56/1,298,225.60
  6. Step 6: Final answer
    x = 1,347,979.35

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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.