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Finding the Fourth Proportional to 707.01, 974.07 and 619.53

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Solution

The fourth proportional to 707.01, 974.07 and 619.53 is: 853.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    707.01 : 974.07 = 619.53 : x
  2. Step 2: Convert to fraction form
    707.01/974.07 = 619.53/x
  3. Step 3: Cross multiply
    707.01x = 974.07 × 619.53
  4. Step 4: Simplify right side
    707.01x = 603,465.59
  5. Step 5: Solve for x
    x = 603,465.59/707.01
  6. Step 6: Final answer
    x = 853.55

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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.