Home / 1,457,175.90-2,185,947.18-782,329.80

Finding the Fourth Proportional to 1,457,175.90, 2,185,947.18 and 782,329.80

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Solution

The fourth proportional to 1,457,175.90, 2,185,947.18 and 782,329.80 is: 1,173,593.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,175.90 : 2,185,947.18 = 782,329.80 : x
  2. Step 2: Convert to fraction form
    1,457,175.90/2,185,947.18 = 782,329.80/x
  3. Step 3: Cross multiply
    1,457,175.90x = 2,185,947.18 × 782,329.80
  4. Step 4: Simplify right side
    1,457,175.90x = 1,710,131,620,139.96
  5. Step 5: Solve for x
    x = 1,710,131,620,139.96/1,457,175.90
  6. Step 6: Final answer
    x = 1,173,593.13

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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.