Home / 830,364.46-1,145,987.62-508,287.40

Finding the Fourth Proportional to 830,364.46, 1,145,987.62 and 508,287.40

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Solution

The fourth proportional to 830,364.46, 1,145,987.62 and 508,287.40 is: 701,488.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,364.46 : 1,145,987.62 = 508,287.40 : x
  2. Step 2: Convert to fraction form
    830,364.46/1,145,987.62 = 508,287.40/x
  3. Step 3: Cross multiply
    830,364.46x = 1,145,987.62 × 508,287.40
  4. Step 4: Simplify right side
    830,364.46x = 582,491,071,542.04
  5. Step 5: Solve for x
    x = 582,491,071,542.04/830,364.46
  6. Step 6: Final answer
    x = 701,488.44

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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.