Home / 709,743.70-1,064,615.55-457,801.30

Finding the Fourth Proportional to 709,743.70, 1,064,615.55 and 457,801.30

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Solution

The fourth proportional to 709,743.70, 1,064,615.55 and 457,801.30 is: 686,701.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,743.70 : 1,064,615.55 = 457,801.30 : x
  2. Step 2: Convert to fraction form
    709,743.70/1,064,615.55 = 457,801.30/x
  3. Step 3: Cross multiply
    709,743.70x = 1,064,615.55 × 457,801.30
  4. Step 4: Simplify right side
    709,743.70x = 487,382,382,790.22
  5. Step 5: Solve for x
    x = 487,382,382,790.22/709,743.70
  6. Step 6: Final answer
    x = 686,701.95

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Double scale
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Similar ratio
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1.5x scale

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.