Home / 705,113.20-1,056,114.60-424,140.40

Finding the Fourth Proportional to 705,113.20, 1,056,114.60 and 424,140.40

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Solution

The fourth proportional to 705,113.20, 1,056,114.60 and 424,140.40 is: 635,275.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,113.20 : 1,056,114.60 = 424,140.40 : x
  2. Step 2: Convert to fraction form
    705,113.20/1,056,114.60 = 424,140.40/x
  3. Step 3: Cross multiply
    705,113.20x = 1,056,114.60 × 424,140.40
  4. Step 4: Simplify right side
    705,113.20x = 447,940,868,889.84
  5. Step 5: Solve for x
    x = 447,940,868,889.84/705,113.20
  6. Step 6: Final answer
    x = 635,275.11

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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.