Home / 934,790.49-1,401,624.59-428,717.48

Finding the Fourth Proportional to 934,790.49, 1,401,624.59 and 428,717.48

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Solution

The fourth proportional to 934,790.49, 1,401,624.59 and 428,717.48 is: 642,818.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,790.49 : 1,401,624.59 = 428,717.48 : x
  2. Step 2: Convert to fraction form
    934,790.49/1,401,624.59 = 428,717.48/x
  3. Step 3: Cross multiply
    934,790.49x = 1,401,624.59 × 428,717.48
  4. Step 4: Simplify right side
    934,790.49x = 600,900,952,979.12
  5. Step 5: Solve for x
    x = 600,900,952,979.12/934,790.49
  6. Step 6: Final answer
    x = 642,818.86

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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.