Home / 645,029.55-966,625.47-475,214.40

Finding the Fourth Proportional to 645,029.55, 966,625.47 and 475,214.40

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Solution

The fourth proportional to 645,029.55, 966,625.47 and 475,214.40 is: 712,144.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,029.55 : 966,625.47 = 475,214.40 : x
  2. Step 2: Convert to fraction form
    645,029.55/966,625.47 = 475,214.40/x
  3. Step 3: Cross multiply
    645,029.55x = 966,625.47 × 475,214.40
  4. Step 4: Simplify right side
    645,029.55x = 459,354,342,750.77
  5. Step 5: Solve for x
    x = 459,354,342,750.77/645,029.55
  6. Step 6: Final answer
    x = 712,144.65

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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.