Home / 1,221,152.68-1,829,357.34-687,045.16

Finding the Fourth Proportional to 1,221,152.68, 1,829,357.34 and 687,045.16

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Solution

The fourth proportional to 1,221,152.68, 1,829,357.34 and 687,045.16 is: 1,029,233.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,152.68 : 1,829,357.34 = 687,045.16 : x
  2. Step 2: Convert to fraction form
    1,221,152.68/1,829,357.34 = 687,045.16/x
  3. Step 3: Cross multiply
    1,221,152.68x = 1,829,357.34 × 687,045.16
  4. Step 4: Simplify right side
    1,221,152.68x = 1,256,851,106,357.47
  5. Step 5: Solve for x
    x = 1,256,851,106,357.47/1,221,152.68
  6. Step 6: Final answer
    x = 1,029,233.38

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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.