Home / 913,537.10-1,260,649.04-505,639.74

Finding the Fourth Proportional to 913,537.10, 1,260,649.04 and 505,639.74

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Solution

The fourth proportional to 913,537.10, 1,260,649.04 and 505,639.74 is: 697,765.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,537.10 : 1,260,649.04 = 505,639.74 : x
  2. Step 2: Convert to fraction form
    913,537.10/1,260,649.04 = 505,639.74/x
  3. Step 3: Cross multiply
    913,537.10x = 1,260,649.04 × 505,639.74
  4. Step 4: Simplify right side
    913,537.10x = 637,434,252,816.85
  5. Step 5: Solve for x
    x = 637,434,252,816.85/913,537.10
  6. Step 6: Final answer
    x = 697,765.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.