Home / 875,100.80-1,207,631.95-487,911.62

Finding the Fourth Proportional to 875,100.80, 1,207,631.95 and 487,911.62

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Solution

The fourth proportional to 875,100.80, 1,207,631.95 and 487,911.62 is: 673,314.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,100.80 : 1,207,631.95 = 487,911.62 : x
  2. Step 2: Convert to fraction form
    875,100.80/1,207,631.95 = 487,911.62/x
  3. Step 3: Cross multiply
    875,100.80x = 1,207,631.95 × 487,911.62
  4. Step 4: Simplify right side
    875,100.80x = 589,217,661,088.26
  5. Step 5: Solve for x
    x = 589,217,661,088.26/875,100.80
  6. Step 6: Final answer
    x = 673,314.05

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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.