Home / 876,731.94-1,209,878.13-489,553.34

Finding the Fourth Proportional to 876,731.94, 1,209,878.13 and 489,553.34

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Solution

The fourth proportional to 876,731.94, 1,209,878.13 and 489,553.34 is: 675,576.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,731.94 : 1,209,878.13 = 489,553.34 : x
  2. Step 2: Convert to fraction form
    876,731.94/1,209,878.13 = 489,553.34/x
  3. Step 3: Cross multiply
    876,731.94x = 1,209,878.13 × 489,553.34
  4. Step 4: Simplify right side
    876,731.94x = 592,299,879,534.45
  5. Step 5: Solve for x
    x = 592,299,879,534.45/876,731.94
  6. Step 6: Final answer
    x = 675,576.94

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1.5x scale

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.