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Finding the Fourth Proportional to 707.19, 975.24 and 458.58

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Solution

The fourth proportional to 707.19, 975.24 and 458.58 is: 632.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    707.19 : 975.24 = 458.58 : x
  2. Step 2: Convert to fraction form
    707.19/975.24 = 458.58/x
  3. Step 3: Cross multiply
    707.19x = 975.24 × 458.58
  4. Step 4: Simplify right side
    707.19x = 447,225.56
  5. Step 5: Solve for x
    x = 447,225.56/707.19
  6. Step 6: Final answer
    x = 632.40

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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.