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Finding the Fourth Proportional to 555,801.66, 767,007 and 301,152.78

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Solution

The fourth proportional to 555,801.66, 767,007 and 301,152.78 is: 415,591.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,801.66 : 767,007 = 301,152.78 : x
  2. Step 2: Convert to fraction form
    555,801.66/767,007 = 301,152.78/x
  3. Step 3: Cross multiply
    555,801.66x = 767,007 × 301,152.78
  4. Step 4: Simplify right side
    555,801.66x = 230,986,290,329.46
  5. Step 5: Solve for x
    x = 230,986,290,329.46/555,801.66
  6. Step 6: Final answer
    x = 415,591.22

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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.