Home / 917,940.24-1,376,910.09-286,854.12

Finding the Fourth Proportional to 917,940.24, 1,376,910.09 and 286,854.12

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Solution

The fourth proportional to 917,940.24, 1,376,910.09 and 286,854.12 is: 430,281.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,940.24 : 1,376,910.09 = 286,854.12 : x
  2. Step 2: Convert to fraction form
    917,940.24/1,376,910.09 = 286,854.12/x
  3. Step 3: Cross multiply
    917,940.24x = 1,376,910.09 × 286,854.12
  4. Step 4: Simplify right side
    917,940.24x = 394,972,332,186.07
  5. Step 5: Solve for x
    x = 394,972,332,186.07/917,940.24
  6. Step 6: Final answer
    x = 430,281.10

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1.5x scale

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.