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Finding the Fourth Proportional to 555,802.20, 767,007.72 and 301,153.20

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Solution

The fourth proportional to 555,802.20, 767,007.72 and 301,153.20 is: 415,591.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,802.20 : 767,007.72 = 301,153.20 : x
  2. Step 2: Convert to fraction form
    555,802.20/767,007.72 = 301,153.20/x
  3. Step 3: Cross multiply
    555,802.20x = 767,007.72 × 301,153.20
  4. Step 4: Simplify right side
    555,802.20x = 230,986,829,302.70
  5. Step 5: Solve for x
    x = 230,986,829,302.70/555,802.20
  6. Step 6: Final answer
    x = 415,591.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.