Home / 1,029,571.72-1,420,328.41-647,809.00

Finding the Fourth Proportional to 1,029,571.72, 1,420,328.41 and 647,809.00

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Solution

The fourth proportional to 1,029,571.72, 1,420,328.41 and 647,809.00 is: 893,674.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,571.72 : 1,420,328.41 = 647,809.00 : x
  2. Step 2: Convert to fraction form
    1,029,571.72/1,420,328.41 = 647,809.00/x
  3. Step 3: Cross multiply
    1,029,571.72x = 1,420,328.41 × 647,809.00
  4. Step 4: Simplify right side
    1,029,571.72x = 920,101,521,783.35
  5. Step 5: Solve for x
    x = 920,101,521,783.35/1,029,571.72
  6. Step 6: Final answer
    x = 893,674.05

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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.