Home / 839,274.39-1,260,009.09-498,340.35

Finding the Fourth Proportional to 839,274.39, 1,260,009.09 and 498,340.35

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Solution

The fourth proportional to 839,274.39, 1,260,009.09 and 498,340.35 is: 748,162.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,274.39 : 1,260,009.09 = 498,340.35 : x
  2. Step 2: Convert to fraction form
    839,274.39/1,260,009.09 = 498,340.35/x
  3. Step 3: Cross multiply
    839,274.39x = 1,260,009.09 × 498,340.35
  4. Step 4: Simplify right side
    839,274.39x = 627,913,370,913.78
  5. Step 5: Solve for x
    x = 627,913,370,913.78/839,274.39
  6. Step 6: Final answer
    x = 748,162.20

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Double scale
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1.5x scale

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.