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Finding the Fourth Proportional to 555,425.00, 766,482.05 and 300,776.19

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Solution

The fourth proportional to 555,425.00, 766,482.05 and 300,776.19 is: 415,068.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,425.00 : 766,482.05 = 300,776.19 : x
  2. Step 2: Convert to fraction form
    555,425.00/766,482.05 = 300,776.19/x
  3. Step 3: Cross multiply
    555,425.00x = 766,482.05 × 300,776.19
  4. Step 4: Simplify right side
    555,425.00x = 230,539,548,580.02
  5. Step 5: Solve for x
    x = 230,539,548,580.02/555,425.00
  6. Step 6: Final answer
    x = 415,068.73

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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.