Home / 971,134.80-1,456,356.60-438,910.80

Finding the Fourth Proportional to 971,134.80, 1,456,356.60 and 438,910.80

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Solution

The fourth proportional to 971,134.80, 1,456,356.60 and 438,910.80 is: 658,210.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,134.80 : 1,456,356.60 = 438,910.80 : x
  2. Step 2: Convert to fraction form
    971,134.80/1,456,356.60 = 438,910.80/x
  3. Step 3: Cross multiply
    971,134.80x = 1,456,356.60 × 438,910.80
  4. Step 4: Simplify right side
    971,134.80x = 639,210,640,391.28
  5. Step 5: Solve for x
    x = 639,210,640,391.28/971,134.80
  6. Step 6: Final answer
    x = 658,210.00

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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.