Home / 771,485.92-1,157,412.24-321,957.04

Finding the Fourth Proportional to 771,485.92, 1,157,412.24 and 321,957.04

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Solution

The fourth proportional to 771,485.92, 1,157,412.24 and 321,957.04 is: 483,012.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,485.92 : 1,157,412.24 = 321,957.04 : x
  2. Step 2: Convert to fraction form
    771,485.92/1,157,412.24 = 321,957.04/x
  3. Step 3: Cross multiply
    771,485.92x = 1,157,412.24 × 321,957.04
  4. Step 4: Simplify right side
    771,485.92x = 372,637,018,850.17
  5. Step 5: Solve for x
    x = 372,637,018,850.17/771,485.92
  6. Step 6: Final answer
    x = 483,012.08

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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.