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Finding the Fourth Proportional to 700.65, 965.01 and 607.40

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Solution

The fourth proportional to 700.65, 965.01 and 607.40 is: 836.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.65 : 965.01 = 607.40 : x
  2. Step 2: Convert to fraction form
    700.65/965.01 = 607.40/x
  3. Step 3: Cross multiply
    700.65x = 965.01 × 607.40
  4. Step 4: Simplify right side
    700.65x = 586,148.15
  5. Step 5: Solve for x
    x = 586,148.15/700.65
  6. Step 6: Final answer
    x = 836.58

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1.5x scale

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.