Home / 698,370.16-1,045,488.48-431,272

Finding the Fourth Proportional to 698,370.16, 1,045,488.48 and 431,272

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Solution

The fourth proportional to 698,370.16, 1,045,488.48 and 431,272 is: 645,631.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,370.16 : 1,045,488.48 = 431,272 : x
  2. Step 2: Convert to fraction form
    698,370.16/1,045,488.48 = 431,272/x
  3. Step 3: Cross multiply
    698,370.16x = 1,045,488.48 × 431,272
  4. Step 4: Simplify right side
    698,370.16x = 450,889,907,746.56
  5. Step 5: Solve for x
    x = 450,889,907,746.56/698,370.16
  6. Step 6: Final answer
    x = 645,631.69

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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.