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Finding the Fourth Proportional to 559,510.80, 772,125.02 and 304,861.98

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Solution

The fourth proportional to 559,510.80, 772,125.02 and 304,861.98 is: 420,709.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,510.80 : 772,125.02 = 304,861.98 : x
  2. Step 2: Convert to fraction form
    559,510.80/772,125.02 = 304,861.98/x
  3. Step 3: Cross multiply
    559,510.80x = 772,125.02 × 304,861.98
  4. Step 4: Simplify right side
    559,510.80x = 235,391,562,404.74
  5. Step 5: Solve for x
    x = 235,391,562,404.74/559,510.80
  6. Step 6: Final answer
    x = 420,709.60

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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.