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Finding the Fourth Proportional to 513,484.78, 770,002.47 and 243,690.24

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Solution

The fourth proportional to 513,484.78, 770,002.47 and 243,690.24 is: 365,428.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,484.78 : 770,002.47 = 243,690.24 : x
  2. Step 2: Convert to fraction form
    513,484.78/770,002.47 = 243,690.24/x
  3. Step 3: Cross multiply
    513,484.78x = 770,002.47 × 243,690.24
  4. Step 4: Simplify right side
    513,484.78x = 187,642,086,714.89
  5. Step 5: Solve for x
    x = 187,642,086,714.89/513,484.78
  6. Step 6: Final answer
    x = 365,428.72

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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.