Home / 430,528.31-645,793.01-205,835.93

Finding the Fourth Proportional to 430,528.31, 645,793.01 and 205,835.93

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Solution

The fourth proportional to 430,528.31, 645,793.01 and 205,835.93 is: 308,754.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,528.31 : 645,793.01 = 205,835.93 : x
  2. Step 2: Convert to fraction form
    430,528.31/645,793.01 = 205,835.93/x
  3. Step 3: Cross multiply
    430,528.31x = 645,793.01 × 205,835.93
  4. Step 4: Simplify right side
    430,528.31x = 132,927,403,771.67
  5. Step 5: Solve for x
    x = 132,927,403,771.67/430,528.31
  6. Step 6: Final answer
    x = 308,754.15

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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.