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Finding the Fourth Proportional to 608,947.20, 913,420.80 and 585,619.20

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Solution

The fourth proportional to 608,947.20, 913,420.80 and 585,619.20 is: 878,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,947.20 : 913,420.80 = 585,619.20 : x
  2. Step 2: Convert to fraction form
    608,947.20/913,420.80 = 585,619.20/x
  3. Step 3: Cross multiply
    608,947.20x = 913,420.80 × 585,619.20
  4. Step 4: Simplify right side
    608,947.20x = 534,916,758,159.36
  5. Step 5: Solve for x
    x = 534,916,758,159.36/608,947.20
  6. Step 6: Final answer
    x = 878,428.80

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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.