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Finding the Fourth Proportional to 564,583.65, 779,126.18 and 306,460.43

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Solution

The fourth proportional to 564,583.65, 779,126.18 and 306,460.43 is: 422,915.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,583.65 : 779,126.18 = 306,460.43 : x
  2. Step 2: Convert to fraction form
    564,583.65/779,126.18 = 306,460.43/x
  3. Step 3: Cross multiply
    564,583.65x = 779,126.18 × 306,460.43
  4. Step 4: Simplify right side
    564,583.65x = 238,771,341,017.58
  5. Step 5: Solve for x
    x = 238,771,341,017.58/564,583.65
  6. Step 6: Final answer
    x = 422,915.79

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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.