Home / 771,506.40-1,157,444.32-321,977.28

Finding the Fourth Proportional to 771,506.40, 1,157,444.32 and 321,977.28

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Solution

The fourth proportional to 771,506.40, 1,157,444.32 and 321,977.28 is: 483,043.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,506.40 : 1,157,444.32 = 321,977.28 : x
  2. Step 2: Convert to fraction form
    771,506.40/1,157,444.32 = 321,977.28/x
  3. Step 3: Cross multiply
    771,506.40x = 1,157,444.32 × 321,977.28
  4. Step 4: Simplify right side
    771,506.40x = 372,670,773,905.05
  5. Step 5: Solve for x
    x = 372,670,773,905.05/771,506.40
  6. Step 6: Final answer
    x = 483,043.01

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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.