Home / 997,640.17-1,496,681.70-287,612.80

Finding the Fourth Proportional to 997,640.17, 1,496,681.70 and 287,612.80

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Solution

The fourth proportional to 997,640.17, 1,496,681.70 and 287,612.80 is: 431,483.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,640.17 : 1,496,681.70 = 287,612.80 : x
  2. Step 2: Convert to fraction form
    997,640.17/1,496,681.70 = 287,612.80/x
  3. Step 3: Cross multiply
    997,640.17x = 1,496,681.70 × 287,612.80
  4. Step 4: Simplify right side
    997,640.17x = 430,464,814,445.76
  5. Step 5: Solve for x
    x = 430,464,814,445.76/997,640.17
  6. Step 6: Final answer
    x = 431,483.04

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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.