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Finding the Fourth Proportional to 551,789.85, 827,700.40 and 152,430.69

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Solution

The fourth proportional to 551,789.85, 827,700.40 and 152,430.69 is: 228,650.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,789.85 : 827,700.40 = 152,430.69 : x
  2. Step 2: Convert to fraction form
    551,789.85/827,700.40 = 152,430.69/x
  3. Step 3: Cross multiply
    551,789.85x = 827,700.40 × 152,430.69
  4. Step 4: Simplify right side
    551,789.85x = 126,166,943,085.28
  5. Step 5: Solve for x
    x = 126,166,943,085.28/551,789.85
  6. Step 6: Final answer
    x = 228,650.35

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1.5x scale

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.