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Finding the Fourth Proportional to 564,669.47, 779,245.40 and 310,037.15

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Solution

The fourth proportional to 564,669.47, 779,245.40 and 310,037.15 is: 427,852.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,669.47 : 779,245.40 = 310,037.15 : x
  2. Step 2: Convert to fraction form
    564,669.47/779,245.40 = 310,037.15/x
  3. Step 3: Cross multiply
    564,669.47x = 779,245.40 × 310,037.15
  4. Step 4: Simplify right side
    564,669.47x = 241,595,021,416.42
  5. Step 5: Solve for x
    x = 241,595,021,416.42/564,669.47
  6. Step 6: Final answer
    x = 427,852.11

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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.