Home / 912,911.70-1,280,175.90-912,911.70

Finding the Fourth Proportional to 912,911.70, 1,280,175.90 and 912,911.70

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Solution

The fourth proportional to 912,911.70, 1,280,175.90 and 912,911.70 is: 1,280,175.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,911.70 : 1,280,175.90 = 912,911.70 : x
  2. Step 2: Convert to fraction form
    912,911.70/1,280,175.90 = 912,911.70/x
  3. Step 3: Cross multiply
    912,911.70x = 1,280,175.90 × 912,911.70
  4. Step 4: Simplify right side
    912,911.70x = 1,168,687,557,168.03
  5. Step 5: Solve for x
    x = 1,168,687,557,168.03/912,911.70
  6. Step 6: Final answer
    x = 1,280,175.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.