Home / 813,010.09-1,121,924.13-468,860.53

Finding the Fourth Proportional to 813,010.09, 1,121,924.13 and 468,860.53

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Solution

The fourth proportional to 813,010.09, 1,121,924.13 and 468,860.53 is: 647,010.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,010.09 : 1,121,924.13 = 468,860.53 : x
  2. Step 2: Convert to fraction form
    813,010.09/1,121,924.13 = 468,860.53/x
  3. Step 3: Cross multiply
    813,010.09x = 1,121,924.13 × 468,860.53
  4. Step 4: Simplify right side
    813,010.09x = 526,025,942,211.59
  5. Step 5: Solve for x
    x = 526,025,942,211.59/813,010.09
  6. Step 6: Final answer
    x = 647,010.35

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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.