Home / 920,116.80-1,269,730.08-517,631.04

Finding the Fourth Proportional to 920,116.80, 1,269,730.08 and 517,631.04

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Solution

The fourth proportional to 920,116.80, 1,269,730.08 and 517,631.04 is: 714,313.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,116.80 : 1,269,730.08 = 517,631.04 : x
  2. Step 2: Convert to fraction form
    920,116.80/1,269,730.08 = 517,631.04/x
  3. Step 3: Cross multiply
    920,116.80x = 1,269,730.08 × 517,631.04
  4. Step 4: Simplify right side
    920,116.80x = 657,251,701,829.68
  5. Step 5: Solve for x
    x = 657,251,701,829.68/920,116.80
  6. Step 6: Final answer
    x = 714,313.34

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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.