Home / 453,721.90-680,582.85-312,004.30

Finding the Fourth Proportional to 453,721.90, 680,582.85 and 312,004.30

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Solution

The fourth proportional to 453,721.90, 680,582.85 and 312,004.30 is: 468,006.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,721.90 : 680,582.85 = 312,004.30 : x
  2. Step 2: Convert to fraction form
    453,721.90/680,582.85 = 312,004.30/x
  3. Step 3: Cross multiply
    453,721.90x = 680,582.85 × 312,004.30
  4. Step 4: Simplify right side
    453,721.90x = 212,344,775,706.26
  5. Step 5: Solve for x
    x = 212,344,775,706.26/453,721.90
  6. Step 6: Final answer
    x = 468,006.45

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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.