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Finding the Fourth Proportional to 868,937.70, 1,303,406.55 and 805,952.10

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Solution

The fourth proportional to 868,937.70, 1,303,406.55 and 805,952.10 is: 1,208,928.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,937.70 : 1,303,406.55 = 805,952.10 : x
  2. Step 2: Convert to fraction form
    868,937.70/1,303,406.55 = 805,952.10/x
  3. Step 3: Cross multiply
    868,937.70x = 1,303,406.55 × 805,952.10
  4. Step 4: Simplify right side
    868,937.70x = 1,050,483,246,126.26
  5. Step 5: Solve for x
    x = 1,050,483,246,126.26/868,937.70
  6. Step 6: Final answer
    x = 1,208,928.15

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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.