Home / 839,479.68-1,158,452.40-457,498.80

Finding the Fourth Proportional to 839,479.68, 1,158,452.40 and 457,498.80

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Solution

The fourth proportional to 839,479.68, 1,158,452.40 and 457,498.80 is: 631,332.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,479.68 : 1,158,452.40 = 457,498.80 : x
  2. Step 2: Convert to fraction form
    839,479.68/1,158,452.40 = 457,498.80/x
  3. Step 3: Cross multiply
    839,479.68x = 1,158,452.40 × 457,498.80
  4. Step 4: Simplify right side
    839,479.68x = 529,990,582,857.12
  5. Step 5: Solve for x
    x = 529,990,582,857.12/839,479.68
  6. Step 6: Final answer
    x = 631,332.24

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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.