Home / 458,174.48-686,985.50-205,409.28

Finding the Fourth Proportional to 458,174.48, 686,985.50 and 205,409.28

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Solution

The fourth proportional to 458,174.48, 686,985.50 and 205,409.28 is: 307,990.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,174.48 : 686,985.50 = 205,409.28 : x
  2. Step 2: Convert to fraction form
    458,174.48/686,985.50 = 205,409.28/x
  3. Step 3: Cross multiply
    458,174.48x = 686,985.50 × 205,409.28
  4. Step 4: Simplify right side
    458,174.48x = 141,113,196,925.44
  5. Step 5: Solve for x
    x = 141,113,196,925.44/458,174.48
  6. Step 6: Final answer
    x = 307,990.08

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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.