Home / 909,905.20-1,364,857.80-898,095.40

Finding the Fourth Proportional to 909,905.20, 1,364,857.80 and 898,095.40

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Solution

The fourth proportional to 909,905.20, 1,364,857.80 and 898,095.40 is: 1,347,143.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,905.20 : 1,364,857.80 = 898,095.40 : x
  2. Step 2: Convert to fraction form
    909,905.20/1,364,857.80 = 898,095.40/x
  3. Step 3: Cross multiply
    909,905.20x = 1,364,857.80 × 898,095.40
  4. Step 4: Simplify right side
    909,905.20x = 1,225,772,511,834.12
  5. Step 5: Solve for x
    x = 1,225,772,511,834.12/909,905.20
  6. Step 6: Final answer
    x = 1,347,143.10

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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.