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Finding the Fourth Proportional to 499,667.80, 749,501.70 and 456,122.20

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Solution

The fourth proportional to 499,667.80, 749,501.70 and 456,122.20 is: 684,183.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,667.80 : 749,501.70 = 456,122.20 : x
  2. Step 2: Convert to fraction form
    499,667.80/749,501.70 = 456,122.20/x
  3. Step 3: Cross multiply
    499,667.80x = 749,501.70 × 456,122.20
  4. Step 4: Simplify right side
    499,667.80x = 341,864,364,307.74
  5. Step 5: Solve for x
    x = 341,864,364,307.74/499,667.80
  6. Step 6: Final answer
    x = 684,183.30

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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.