Home / 875,104.81-1,207,637.46-487,915.63

Finding the Fourth Proportional to 875,104.81, 1,207,637.46 and 487,915.63

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Solution

The fourth proportional to 875,104.81, 1,207,637.46 and 487,915.63 is: 673,319.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,104.81 : 1,207,637.46 = 487,915.63 : x
  2. Step 2: Convert to fraction form
    875,104.81/1,207,637.46 = 487,915.63/x
  3. Step 3: Cross multiply
    875,104.81x = 1,207,637.46 × 487,915.63
  4. Step 4: Simplify right side
    875,104.81x = 589,225,192,107.50
  5. Step 5: Solve for x
    x = 589,225,192,107.50/875,104.81
  6. Step 6: Final answer
    x = 673,319.57

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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.