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Finding the Fourth Proportional to 535,386.59, 738,833.45 and 309,032.09

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Solution

The fourth proportional to 535,386.59, 738,833.45 and 309,032.09 is: 426,464.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,386.59 : 738,833.45 = 309,032.09 : x
  2. Step 2: Convert to fraction form
    535,386.59/738,833.45 = 309,032.09/x
  3. Step 3: Cross multiply
    535,386.59x = 738,833.45 × 309,032.09
  4. Step 4: Simplify right side
    535,386.59x = 228,323,239,976.08
  5. Step 5: Solve for x
    x = 228,323,239,976.08/535,386.59
  6. Step 6: Final answer
    x = 426,464.25

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1.5x scale

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.