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Finding the Fourth Proportional to 909,573.90, 1,275,269.70 and 909,573.90

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Solution

The fourth proportional to 909,573.90, 1,275,269.70 and 909,573.90 is: 1,275,269.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,573.90 : 1,275,269.70 = 909,573.90 : x
  2. Step 2: Convert to fraction form
    909,573.90/1,275,269.70 = 909,573.90/x
  3. Step 3: Cross multiply
    909,573.90x = 1,275,269.70 × 909,573.90
  4. Step 4: Simplify right side
    909,573.90x = 1,159,952,034,580.83
  5. Step 5: Solve for x
    x = 1,159,952,034,580.83/909,573.90
  6. Step 6: Final answer
    x = 1,275,269.70

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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.