Home / 745,832.20-1,118,748.30-430,029.40

Finding the Fourth Proportional to 745,832.20, 1,118,748.30 and 430,029.40

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Solution

The fourth proportional to 745,832.20, 1,118,748.30 and 430,029.40 is: 645,044.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,832.20 : 1,118,748.30 = 430,029.40 : x
  2. Step 2: Convert to fraction form
    745,832.20/1,118,748.30 = 430,029.40/x
  3. Step 3: Cross multiply
    745,832.20x = 1,118,748.30 × 430,029.40
  4. Step 4: Simplify right side
    745,832.20x = 481,094,660,200.02
  5. Step 5: Solve for x
    x = 481,094,660,200.02/745,832.20
  6. Step 6: Final answer
    x = 645,044.10

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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.