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Finding the Fourth Proportional to 564,282.18, 778,707.27 and 309,637.62

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Solution

The fourth proportional to 564,282.18, 778,707.27 and 309,637.62 is: 427,298.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,282.18 : 778,707.27 = 309,637.62 : x
  2. Step 2: Convert to fraction form
    564,282.18/778,707.27 = 309,637.62/x
  3. Step 3: Cross multiply
    564,282.18x = 778,707.27 × 309,637.62
  4. Step 4: Simplify right side
    564,282.18x = 241,117,065,759.50
  5. Step 5: Solve for x
    x = 241,117,065,759.50/564,282.18
  6. Step 6: Final answer
    x = 427,298.74

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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.