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Finding the Fourth Proportional to 878,332.88, 1,211,430.48 and 756,033.32

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Solution

The fourth proportional to 878,332.88, 1,211,430.48 and 756,033.32 is: 1,042,750.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,332.88 : 1,211,430.48 = 756,033.32 : x
  2. Step 2: Convert to fraction form
    878,332.88/1,211,430.48 = 756,033.32/x
  3. Step 3: Cross multiply
    878,332.88x = 1,211,430.48 × 756,033.32
  4. Step 4: Simplify right side
    878,332.88x = 915,881,807,743.59
  5. Step 5: Solve for x
    x = 915,881,807,743.59/878,332.88
  6. Step 6: Final answer
    x = 1,042,750.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.