Home / 876,678.57-1,313,959.73-426,725.19

Finding the Fourth Proportional to 876,678.57, 1,313,959.73 and 426,725.19

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Solution

The fourth proportional to 876,678.57, 1,313,959.73 and 426,725.19 is: 639,572.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,678.57 : 1,313,959.73 = 426,725.19 : x
  2. Step 2: Convert to fraction form
    876,678.57/1,313,959.73 = 426,725.19/x
  3. Step 3: Cross multiply
    876,678.57x = 1,313,959.73 × 426,725.19
  4. Step 4: Simplify right side
    876,678.57x = 560,699,713,302.97
  5. Step 5: Solve for x
    x = 560,699,713,302.97/876,678.57
  6. Step 6: Final answer
    x = 639,572.74

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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.