Home / 771,815.02-1,158,782.98-392,990.26

Finding the Fourth Proportional to 771,815.02, 1,158,782.98 and 392,990.26

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Solution

The fourth proportional to 771,815.02, 1,158,782.98 and 392,990.26 is: 590,025.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,815.02 : 1,158,782.98 = 392,990.26 : x
  2. Step 2: Convert to fraction form
    771,815.02/1,158,782.98 = 392,990.26/x
  3. Step 3: Cross multiply
    771,815.02x = 1,158,782.98 × 392,990.26
  4. Step 4: Simplify right side
    771,815.02x = 455,390,424,593.78
  5. Step 5: Solve for x
    x = 455,390,424,593.78/771,815.02
  6. Step 6: Final answer
    x = 590,025.35

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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.