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Finding the Fourth Proportional to 517,673.20, 776,947.20 and 202,356.40

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Solution

The fourth proportional to 517,673.20, 776,947.20 and 202,356.40 is: 303,705.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,673.20 : 776,947.20 = 202,356.40 : x
  2. Step 2: Convert to fraction form
    517,673.20/776,947.20 = 202,356.40/x
  3. Step 3: Cross multiply
    517,673.20x = 776,947.20 × 202,356.40
  4. Step 4: Simplify right side
    517,673.20x = 157,220,238,382.08
  5. Step 5: Solve for x
    x = 157,220,238,382.08/517,673.20
  6. Step 6: Final answer
    x = 303,705.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.