Home / 777,725.80-1,166,588.70-578,660.20

Finding the Fourth Proportional to 777,725.80, 1,166,588.70 and 578,660.20

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Solution

The fourth proportional to 777,725.80, 1,166,588.70 and 578,660.20 is: 867,990.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,725.80 : 1,166,588.70 = 578,660.20 : x
  2. Step 2: Convert to fraction form
    777,725.80/1,166,588.70 = 578,660.20/x
  3. Step 3: Cross multiply
    777,725.80x = 1,166,588.70 × 578,660.20
  4. Step 4: Simplify right side
    777,725.80x = 675,058,450,459.74
  5. Step 5: Solve for x
    x = 675,058,450,459.74/777,725.80
  6. Step 6: Final answer
    x = 867,990.30

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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.