Home / 781,583.50-1,078,585.23-423,887.50

Finding the Fourth Proportional to 781,583.50, 1,078,585.23 and 423,887.50

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Solution

The fourth proportional to 781,583.50, 1,078,585.23 and 423,887.50 is: 584,964.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,583.50 : 1,078,585.23 = 423,887.50 : x
  2. Step 2: Convert to fraction form
    781,583.50/1,078,585.23 = 423,887.50/x
  3. Step 3: Cross multiply
    781,583.50x = 1,078,585.23 × 423,887.50
  4. Step 4: Simplify right side
    781,583.50x = 457,198,796,681.63
  5. Step 5: Solve for x
    x = 457,198,796,681.63/781,583.50
  6. Step 6: Final answer
    x = 584,964.75

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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.