Home / 839,294.70-1,258,808.40-278,329.20

Finding the Fourth Proportional to 839,294.70, 1,258,808.40 and 278,329.20

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Solution

The fourth proportional to 839,294.70, 1,258,808.40 and 278,329.20 is: 417,449.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,294.70 : 1,258,808.40 = 278,329.20 : x
  2. Step 2: Convert to fraction form
    839,294.70/1,258,808.40 = 278,329.20/x
  3. Step 3: Cross multiply
    839,294.70x = 1,258,808.40 × 278,329.20
  4. Step 4: Simplify right side
    839,294.70x = 350,363,134,925.28
  5. Step 5: Solve for x
    x = 350,363,134,925.28/839,294.70
  6. Step 6: Final answer
    x = 417,449.48

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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.