Home / 1,125,808.10-1,688,296.94-486,141.34

Finding the Fourth Proportional to 1,125,808.10, 1,688,296.94 and 486,141.34

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Solution

The fourth proportional to 1,125,808.10, 1,688,296.94 and 486,141.34 is: 729,032.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,808.10 : 1,688,296.94 = 486,141.34 : x
  2. Step 2: Convert to fraction form
    1,125,808.10/1,688,296.94 = 486,141.34/x
  3. Step 3: Cross multiply
    1,125,808.10x = 1,688,296.94 × 486,141.34
  4. Step 4: Simplify right side
    1,125,808.10x = 820,750,936,729.50
  5. Step 5: Solve for x
    x = 820,750,936,729.50/1,125,808.10
  6. Step 6: Final answer
    x = 729,032.72

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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.