Home / 771,816.02-1,158,784.48-392,991.26

Finding the Fourth Proportional to 771,816.02, 1,158,784.48 and 392,991.26

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Solution

The fourth proportional to 771,816.02, 1,158,784.48 and 392,991.26 is: 590,026.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,816.02 : 1,158,784.48 = 392,991.26 : x
  2. Step 2: Convert to fraction form
    771,816.02/1,158,784.48 = 392,991.26/x
  3. Step 3: Cross multiply
    771,816.02x = 1,158,784.48 × 392,991.26
  4. Step 4: Simplify right side
    771,816.02x = 455,392,172,863.65
  5. Step 5: Solve for x
    x = 455,392,172,863.65/771,816.02
  6. Step 6: Final answer
    x = 590,026.85

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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.