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Finding the Fourth Proportional to 555,988, 767,259.12 and 301,332.64

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Solution

The fourth proportional to 555,988, 767,259.12 and 301,332.64 is: 415,836.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,988 : 767,259.12 = 301,332.64 : x
  2. Step 2: Convert to fraction form
    555,988/767,259.12 = 301,332.64/x
  3. Step 3: Cross multiply
    555,988x = 767,259.12 × 301,332.64
  4. Step 4: Simplify right side
    555,988x = 231,200,216,193.68
  5. Step 5: Solve for x
    x = 231,200,216,193.68/555,988
  6. Step 6: Final answer
    x = 415,836.70

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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.