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Finding the Fourth Proportional to 872,002.60, 1,223,603 and 872,002.60

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Solution

The fourth proportional to 872,002.60, 1,223,603 and 872,002.60 is: 1,223,603

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,002.60 : 1,223,603 = 872,002.60 : x
  2. Step 2: Convert to fraction form
    872,002.60/1,223,603 = 872,002.60/x
  3. Step 3: Cross multiply
    872,002.60x = 1,223,603 × 872,002.60
  4. Step 4: Simplify right side
    872,002.60x = 1,066,984,997,367.80
  5. Step 5: Solve for x
    x = 1,066,984,997,367.80/872,002.60
  6. Step 6: Final answer
    x = 1,223,603

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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.