Home / 764,609.80-1,146,914.70-577,985.80

Finding the Fourth Proportional to 764,609.80, 1,146,914.70 and 577,985.80

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Solution

The fourth proportional to 764,609.80, 1,146,914.70 and 577,985.80 is: 866,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,609.80 : 1,146,914.70 = 577,985.80 : x
  2. Step 2: Convert to fraction form
    764,609.80/1,146,914.70 = 577,985.80/x
  3. Step 3: Cross multiply
    764,609.80x = 1,146,914.70 × 577,985.80
  4. Step 4: Simplify right side
    764,609.80x = 662,900,410,411.26
  5. Step 5: Solve for x
    x = 662,900,410,411.26/764,609.80
  6. Step 6: Final answer
    x = 866,978.70

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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.