Home / 987,940.04-1,363,339.55-558,210.94

Finding the Fourth Proportional to 987,940.04, 1,363,339.55 and 558,210.94

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Solution

The fourth proportional to 987,940.04, 1,363,339.55 and 558,210.94 is: 770,321.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,940.04 : 1,363,339.55 = 558,210.94 : x
  2. Step 2: Convert to fraction form
    987,940.04/1,363,339.55 = 558,210.94/x
  3. Step 3: Cross multiply
    987,940.04x = 1,363,339.55 × 558,210.94
  4. Step 4: Simplify right side
    987,940.04x = 761,031,057,400.64
  5. Step 5: Solve for x
    x = 761,031,057,400.64/987,940.04
  6. Step 6: Final answer
    x = 770,321.10

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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.