Home / 708,250.60-1,062,980.70-287,828.20

Finding the Fourth Proportional to 708,250.60, 1,062,980.70 and 287,828.20

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Solution

The fourth proportional to 708,250.60, 1,062,980.70 and 287,828.20 is: 431,988.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,250.60 : 1,062,980.70 = 287,828.20 : x
  2. Step 2: Convert to fraction form
    708,250.60/1,062,980.70 = 287,828.20/x
  3. Step 3: Cross multiply
    708,250.60x = 1,062,980.70 × 287,828.20
  4. Step 4: Simplify right side
    708,250.60x = 305,955,821,515.74
  5. Step 5: Solve for x
    x = 305,955,821,515.74/708,250.60
  6. Step 6: Final answer
    x = 431,988.09

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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.