Home / 874,769.28-1,207,185.92-492,802.08

Finding the Fourth Proportional to 874,769.28, 1,207,185.92 and 492,802.08

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Solution

The fourth proportional to 874,769.28, 1,207,185.92 and 492,802.08 is: 680,069.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,769.28 : 1,207,185.92 = 492,802.08 : x
  2. Step 2: Convert to fraction form
    874,769.28/1,207,185.92 = 492,802.08/x
  3. Step 3: Cross multiply
    874,769.28x = 1,207,185.92 × 492,802.08
  4. Step 4: Simplify right side
    874,769.28x = 594,903,732,322.71
  5. Step 5: Solve for x
    x = 594,903,732,322.71/874,769.28
  6. Step 6: Final answer
    x = 680,069.30

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1.5x scale

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.