Home / 916,978.49-1,373,528.58-579,845.15

Finding the Fourth Proportional to 916,978.49, 1,373,528.58 and 579,845.15

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Solution

The fourth proportional to 916,978.49, 1,373,528.58 and 579,845.15 is: 868,541.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,978.49 : 1,373,528.58 = 579,845.15 : x
  2. Step 2: Convert to fraction form
    916,978.49/1,373,528.58 = 579,845.15/x
  3. Step 3: Cross multiply
    916,978.49x = 1,373,528.58 × 579,845.15
  4. Step 4: Simplify right side
    916,978.49x = 796,433,878,631.74
  5. Step 5: Solve for x
    x = 796,433,878,631.74/916,978.49
  6. Step 6: Final answer
    x = 868,541.51

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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.