Home / 769,060.80-1,153,130.40-395,812.80

Finding the Fourth Proportional to 769,060.80, 1,153,130.40 and 395,812.80

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Solution

The fourth proportional to 769,060.80, 1,153,130.40 and 395,812.80 is: 593,482.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,060.80 : 1,153,130.40 = 395,812.80 : x
  2. Step 2: Convert to fraction form
    769,060.80/1,153,130.40 = 395,812.80/x
  3. Step 3: Cross multiply
    769,060.80x = 1,153,130.40 × 395,812.80
  4. Step 4: Simplify right side
    769,060.80x = 456,423,772,389.12
  5. Step 5: Solve for x
    x = 456,423,772,389.12/769,060.80
  6. Step 6: Final answer
    x = 593,482.04

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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.