Home / 651,639.04-899,261.80-396,990.04

Finding the Fourth Proportional to 651,639.04, 899,261.80 and 396,990.04

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Solution

The fourth proportional to 651,639.04, 899,261.80 and 396,990.04 is: 547,846.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,639.04 : 899,261.80 = 396,990.04 : x
  2. Step 2: Convert to fraction form
    651,639.04/899,261.80 = 396,990.04/x
  3. Step 3: Cross multiply
    651,639.04x = 899,261.80 × 396,990.04
  4. Step 4: Simplify right side
    651,639.04x = 356,997,977,952.47
  5. Step 5: Solve for x
    x = 356,997,977,952.47/651,639.04
  6. Step 6: Final answer
    x = 547,846.21

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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.