Home / 783,619.80-1,175,429.70-547,690.20

Finding the Fourth Proportional to 783,619.80, 1,175,429.70 and 547,690.20

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Solution

The fourth proportional to 783,619.80, 1,175,429.70 and 547,690.20 is: 821,535.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,619.80 : 1,175,429.70 = 547,690.20 : x
  2. Step 2: Convert to fraction form
    783,619.80/1,175,429.70 = 547,690.20/x
  3. Step 3: Cross multiply
    783,619.80x = 1,175,429.70 × 547,690.20
  4. Step 4: Simplify right side
    783,619.80x = 643,771,327,478.94
  5. Step 5: Solve for x
    x = 643,771,327,478.94/783,619.80
  6. Step 6: Final answer
    x = 821,535.30

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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.