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Finding the Fourth Proportional to 518,855.85, 778,024.58 and 238,055.85

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Solution

The fourth proportional to 518,855.85, 778,024.58 and 238,055.85 is: 356,964.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,855.85 : 778,024.58 = 238,055.85 : x
  2. Step 2: Convert to fraction form
    518,855.85/778,024.58 = 238,055.85/x
  3. Step 3: Cross multiply
    518,855.85x = 778,024.58 × 238,055.85
  4. Step 4: Simplify right side
    518,855.85x = 185,213,301,522.51
  5. Step 5: Solve for x
    x = 185,213,301,522.51/518,855.85
  6. Step 6: Final answer
    x = 356,964.85

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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.