Home / 870,133.53-1,200,784.71-482,949.11

Finding the Fourth Proportional to 870,133.53, 1,200,784.71 and 482,949.11

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Solution

The fourth proportional to 870,133.53, 1,200,784.71 and 482,949.11 is: 666,470.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,133.53 : 1,200,784.71 = 482,949.11 : x
  2. Step 2: Convert to fraction form
    870,133.53/1,200,784.71 = 482,949.11/x
  3. Step 3: Cross multiply
    870,133.53x = 1,200,784.71 × 482,949.11
  4. Step 4: Simplify right side
    870,133.53x = 579,917,909,998.07
  5. Step 5: Solve for x
    x = 579,917,909,998.07/870,133.53
  6. Step 6: Final answer
    x = 666,470.02

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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.