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Finding the Fourth Proportional to 564,009.66, 778,833.78 and 383,393.54

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Solution

The fourth proportional to 564,009.66, 778,833.78 and 383,393.54 is: 529,423.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,009.66 : 778,833.78 = 383,393.54 : x
  2. Step 2: Convert to fraction form
    564,009.66/778,833.78 = 383,393.54/x
  3. Step 3: Cross multiply
    564,009.66x = 778,833.78 × 383,393.54
  4. Step 4: Simplify right side
    564,009.66x = 298,599,839,985.78
  5. Step 5: Solve for x
    x = 298,599,839,985.78/564,009.66
  6. Step 6: Final answer
    x = 529,423.27

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1.5x scale

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.