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Finding the Fourth Proportional to 978,332.40, 1,366,866 and 978,332.40

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Solution

The fourth proportional to 978,332.40, 1,366,866 and 978,332.40 is: 1,366,866.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,332.40 : 1,366,866 = 978,332.40 : x
  2. Step 2: Convert to fraction form
    978,332.40/1,366,866 = 978,332.40/x
  3. Step 3: Cross multiply
    978,332.40x = 1,366,866 × 978,332.40
  4. Step 4: Simplify right side
    978,332.40x = 1,337,249,294,258.40
  5. Step 5: Solve for x
    x = 1,337,249,294,258.40/978,332.40
  6. Step 6: Final answer
    x = 1,366,866.00

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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.