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Finding the Fourth Proportional to 564,525.17, 779,045.59 and 306,402.21

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Solution

The fourth proportional to 564,525.17, 779,045.59 and 306,402.21 is: 422,835.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,525.17 : 779,045.59 = 306,402.21 : x
  2. Step 2: Convert to fraction form
    564,525.17/779,045.59 = 306,402.21/x
  3. Step 3: Cross multiply
    564,525.17x = 779,045.59 × 306,402.21
  4. Step 4: Simplify right side
    564,525.17x = 238,701,288,618.59
  5. Step 5: Solve for x
    x = 238,701,288,618.59/564,525.17
  6. Step 6: Final answer
    x = 422,835.51

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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.