Home / 771,821.84-1,157,844.85-239,385.76

Finding the Fourth Proportional to 771,821.84, 1,157,844.85 and 239,385.76

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Solution

The fourth proportional to 771,821.84, 1,157,844.85 and 239,385.76 is: 359,113.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,821.84 : 1,157,844.85 = 239,385.76 : x
  2. Step 2: Convert to fraction form
    771,821.84/1,157,844.85 = 239,385.76/x
  3. Step 3: Cross multiply
    771,821.84x = 1,157,844.85 × 239,385.76
  4. Step 4: Simplify right side
    771,821.84x = 277,171,565,886.26
  5. Step 5: Solve for x
    x = 277,171,565,886.26/771,821.84
  6. Step 6: Final answer
    x = 359,113.40

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1.5x scale

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.