Home / 357,985.78-493,526.17-285,634.35

Finding the Fourth Proportional to 357,985.78, 493,526.17 and 285,634.35

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Solution

The fourth proportional to 357,985.78, 493,526.17 and 285,634.35 is: 393,781.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,985.78 : 493,526.17 = 285,634.35 : x
  2. Step 2: Convert to fraction form
    357,985.78/493,526.17 = 285,634.35/x
  3. Step 3: Cross multiply
    357,985.78x = 493,526.17 × 285,634.35
  4. Step 4: Simplify right side
    357,985.78x = 140,968,025,526.29
  5. Step 5: Solve for x
    x = 140,968,025,526.29/357,985.78
  6. Step 6: Final answer
    x = 393,781.08

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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.