Home / 535,410.08-738,865.88-309,055.58

Finding the Fourth Proportional to 535,410.08, 738,865.88 and 309,055.58

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Solution

The fourth proportional to 535,410.08, 738,865.88 and 309,055.58 is: 426,496.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,410.08 : 738,865.88 = 309,055.58 : x
  2. Step 2: Convert to fraction form
    535,410.08/738,865.88 = 309,055.58/x
  3. Step 3: Cross multiply
    535,410.08x = 738,865.88 × 309,055.58
  4. Step 4: Simplify right side
    535,410.08x = 228,350,623,085.61
  5. Step 5: Solve for x
    x = 228,350,623,085.61/535,410.08
  6. Step 6: Final answer
    x = 426,496.68

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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.