Home / 1,287,502.84-1,776,783.10-714,579.92

Finding the Fourth Proportional to 1,287,502.84, 1,776,783.10 and 714,579.92

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Solution

The fourth proportional to 1,287,502.84, 1,776,783.10 and 714,579.92 is: 986,136.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,502.84 : 1,776,783.10 = 714,579.92 : x
  2. Step 2: Convert to fraction form
    1,287,502.84/1,776,783.10 = 714,579.92/x
  3. Step 3: Cross multiply
    1,287,502.84x = 1,776,783.10 × 714,579.92
  4. Step 4: Simplify right side
    1,287,502.84x = 1,269,653,525,455.35
  5. Step 5: Solve for x
    x = 1,269,653,525,455.35/1,287,502.84
  6. Step 6: Final answer
    x = 986,136.49

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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.