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Finding the Fourth Proportional to 564,707.95, 779,302.76 and 306,587.28

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Solution

The fourth proportional to 564,707.95, 779,302.76 and 306,587.28 is: 423,093.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,707.95 : 779,302.76 = 306,587.28 : x
  2. Step 2: Convert to fraction form
    564,707.95/779,302.76 = 306,587.28/x
  3. Step 3: Cross multiply
    564,707.95x = 779,302.76 × 306,587.28
  4. Step 4: Simplify right side
    564,707.95x = 238,924,310,354.85
  5. Step 5: Solve for x
    x = 238,924,310,354.85/564,707.95
  6. Step 6: Final answer
    x = 423,093.58

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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.