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Finding the Fourth Proportional to 647,585.28, 971,386.80 and 248,246.40

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Solution

The fourth proportional to 647,585.28, 971,386.80 and 248,246.40 is: 372,373.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,585.28 : 971,386.80 = 248,246.40 : x
  2. Step 2: Convert to fraction form
    647,585.28/971,386.80 = 248,246.40/x
  3. Step 3: Cross multiply
    647,585.28x = 971,386.80 × 248,246.40
  4. Step 4: Simplify right side
    647,585.28x = 241,143,276,107.52
  5. Step 5: Solve for x
    x = 241,143,276,107.52/647,585.28
  6. Step 6: Final answer
    x = 372,373.00

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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.