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Finding the Fourth Proportional to 564,510.54, 779,025.28 and 306,387.47

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Solution

The fourth proportional to 564,510.54, 779,025.28 and 306,387.47 is: 422,815.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,510.54 : 779,025.28 = 306,387.47 : x
  2. Step 2: Convert to fraction form
    564,510.54/779,025.28 = 306,387.47/x
  3. Step 3: Cross multiply
    564,510.54x = 779,025.28 × 306,387.47
  4. Step 4: Simplify right side
    564,510.54x = 238,683,584,605.24
  5. Step 5: Solve for x
    x = 238,683,584,605.24/564,510.54
  6. Step 6: Final answer
    x = 422,815.11

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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.