Home / 839,791.20-1,259,686.80-460,565.40

Finding the Fourth Proportional to 839,791.20, 1,259,686.80 and 460,565.40

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Solution

The fourth proportional to 839,791.20, 1,259,686.80 and 460,565.40 is: 690,848.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,791.20 : 1,259,686.80 = 460,565.40 : x
  2. Step 2: Convert to fraction form
    839,791.20/1,259,686.80 = 460,565.40/x
  3. Step 3: Cross multiply
    839,791.20x = 1,259,686.80 × 460,565.40
  4. Step 4: Simplify right side
    839,791.20x = 580,168,154,916.72
  5. Step 5: Solve for x
    x = 580,168,154,916.72/839,791.20
  6. Step 6: Final answer
    x = 690,848.10

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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.