Home / 645,117.30-966,509.55-551,805.30

Finding the Fourth Proportional to 645,117.30, 966,509.55 and 551,805.30

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Solution

The fourth proportional to 645,117.30, 966,509.55 and 551,805.30 is: 826,710.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,117.30 : 966,509.55 = 551,805.30 : x
  2. Step 2: Convert to fraction form
    645,117.30/966,509.55 = 551,805.30/x
  3. Step 3: Cross multiply
    645,117.30x = 966,509.55 × 551,805.30
  4. Step 4: Simplify right side
    645,117.30x = 533,325,092,190.62
  5. Step 5: Solve for x
    x = 533,325,092,190.62/645,117.30
  6. Step 6: Final answer
    x = 826,710.26

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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.