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Finding the Fourth Proportional to 453,043.58, 679,474.65 and 430,562.30

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Solution

The fourth proportional to 453,043.58, 679,474.65 and 430,562.30 is: 645,757.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,043.58 : 679,474.65 = 430,562.30 : x
  2. Step 2: Convert to fraction form
    453,043.58/679,474.65 = 430,562.30/x
  3. Step 3: Cross multiply
    453,043.58x = 679,474.65 × 430,562.30
  4. Step 4: Simplify right side
    453,043.58x = 292,556,168,095.70
  5. Step 5: Solve for x
    x = 292,556,168,095.70/453,043.58
  6. Step 6: Final answer
    x = 645,757.23

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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.