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Finding the Fourth Proportional to 565,140.64, 779,569.68 and 352,804

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Solution

The fourth proportional to 565,140.64, 779,569.68 and 352,804 is: 486,667.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,140.64 : 779,569.68 = 352,804 : x
  2. Step 2: Convert to fraction form
    565,140.64/779,569.68 = 352,804/x
  3. Step 3: Cross multiply
    565,140.64x = 779,569.68 × 352,804
  4. Step 4: Simplify right side
    565,140.64x = 275,035,301,382.72
  5. Step 5: Solve for x
    x = 275,035,301,382.72/565,140.64
  6. Step 6: Final answer
    x = 486,667.00

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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.