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Finding the Fourth Proportional to 651,861.69, 977,750.55 and 225,385.89

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Solution

The fourth proportional to 651,861.69, 977,750.55 and 225,385.89 is: 338,064.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,861.69 : 977,750.55 = 225,385.89 : x
  2. Step 2: Convert to fraction form
    651,861.69/977,750.55 = 225,385.89/x
  3. Step 3: Cross multiply
    651,861.69x = 977,750.55 × 225,385.89
  4. Step 4: Simplify right side
    651,861.69x = 220,371,177,909.74
  5. Step 5: Solve for x
    x = 220,371,177,909.74/651,861.69
  6. Step 6: Final answer
    x = 338,064.32

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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.